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- #include <bits/stdc++.h>
- // #include <iostream>
- // #include <cstdio>
- // #include <cstdlib>
- // #include <algorithm>
- // #include <cmath>
- // #include <vector>
- // #include <set>
- // #include <map>
- // #include <queue>
- // #include <stack>
- // #include <ctime>
- // #include <cassert>
- // #include <complex>
- // #include <string>
- // #include <cstring>
- // #include <bitset>
- using namespace std;
- // #pragma GCC optimize("Ofast,no-stack-protector")
- // #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
- // #pragma GCC optimize("unroll-loops")
- #define ll long long int
- #define vi vector< int >
- #define vll vector< ll >
- #define sc scanf
- #define pf printf
- #define cspf(i) pf("Case %d: ", i)
- #define spc pf(" ")
- #define line pf("\n")
- #define ff first
- #define ss second
- #define mp make_pair
- #define pb push_back
- #define ppb pop_back
- #define tp(v,j) get<j>(v)
- #define Log(b,x) (log(x)/log(b))
- #define FOR(i,x,y) for(int i = int(x); i < int(y); i++)
- #define ROF(i,x,y) for(int i = int(x)-1; i >= int(y); i--)
- #define clr(arr,x) memset(arr, x, sizeof arr)
- #define vout(v,sz) for(int w=0;w<sz;w++){if(w) spc; cout<<v[w];}
- #define all(v) v.begin(), v.end()
- #define rall(v) v.rbegin(), v.rend()
- #define unq(v) sort(all(v)),(v).resize(unique(all(v))-v.begin())
- #define fastIO ios::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr)
- #define sc1(x) sc("%d",&x)
- #define sc2(x,y) sc("%d %d", &x, &y)
- #define sc3(x,y,z) sc("%d %d %d", &x, &y, &z)
- #define scl1(x) sc("%lld",&x)
- #define scl2(x,y) sc("%lld %lld", &x, &y)
- #define scf1(x) sc("%lf",&x);
- #define scf2(x,y) sc("%lf %lf", &x, &y)
- #define pf1(x) pf("%d",x)
- #define pf2(x,y) pf("%d %d", x, y)
- #define pfl1(x) pf("%lld\n",x)
- #define pfl2(x,y) pf("%lld %lld", x, y)
- #define MOD (int)(1e9)
- #define MaxN 10000000
- #define inf 0x3f3f3f3f
- #define PI acos(-1.0) // 3.1415926535897932
- #define eps 1e-6
- #ifdef ERFANUL007
- #define debug(...) __f(#__VA_ARGS__, __VA_ARGS__)
- template < typename Arg1 >
- void __f(const char* name, Arg1&& arg1){
- cout << name << " = " << arg1 << std::endl;
- }
- template < typename Arg1, typename... Args>
- void __f(const char* names, Arg1&& arg1, Args&&... args){
- const char* comma = strchr(names, ',');
- cout.write(names, comma - names) << " = " << arg1 <<" | ";
- __f(comma+1, args...);
- }
- #else
- #define debug(...)
- #endif
- template <class T> inline T bigMod(T p,T e,T M){T ret=1; for(;e>0;e>>=1){ if(e&1) ret=(ret*p)%M; p=(p*p)%M;} return (T)ret;}
- template <class T> inline T modInverse(T a,T M){return bigMod(a,M-2,M);}
- template <class T> inline T gcd(T a,T b){if(b==0)return a;return gcd(b,a%b);}
- template <class T> inline T lcm(T a,T b) {a=abs(a);b=abs(b); return (a/gcd(a,b))*b;}
- int dx[] = { 1,-1, 0, 0}; //graph moves
- int dy[] = { 0, 0, 1,-1}; //graph moves
- bool isprime[MaxN+1];
- vector<ll>prime;
- void seive(){
- clr(isprime, true);
- for(int i=4; i<=MaxN; i+=2) isprime[i]=false;
- for(ll i=3; i*i<=MaxN; i+=2){
- if(!isprime[i]) continue;
- for(ll j = i*i; j<=MaxN; j+=(i*2)) isprime[j]=false;
- }
- for(int i=3; i<=MaxN; i+=2){
- if(isprime[i]) prime.pb(i);
- }
- }
- ll sum[MaxN + 1];
- void precalc(){
- for(int i=0; i < prime.size(); i++){
- ll x = 1, val = 1;
- for(int j=1; j<25; j++){
- x *= 2;
- val += x;
- if(x * prime[i] <= MaxN){
- ll y = prime[i] * x;
- sum[y] = (val * (prime[i]+1)) - (y * 2);
- }
- else break;
- }
- }
- for(int i=1; i<=MaxN; i++){
- sum[i] = sum[i-1] + sum[i];
- }
- }
- int main()
- {
- #ifdef ERFANUL007
- clock_t tStart = clock();
- freopen("input.txt", "r", stdin);
- freopen("output.txt", "w", stdout);
- #endif
- seive();
- precalc();
- int n;
- while(~sc1(n) && n){
- pf("%d %lld\n", n, sum[n]);
- }
- #ifdef ERFANUL007
- fprintf(stderr, "\n>> Runtime: %.10fs\n", (double) (clock() - tStart) / CLOCKS_PER_SEC);
- #endif
- return 0;
- }
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