#include <iomanip>
#include <iostream>
#include <functional>
#include <algorithm>
#include <math.h>
#include <cmath>
#include <string>
#include <vector>
#include<set>
#include<map>
#include <time.h>
#include <fstream>
using namespace std;


int main(){

	int n;
	int limit;
	cin >> n;

		double c = sqrt(n*1.0);
		double sum = 0;

		for (int i = 1; i <=c; i++){
			if (n%i == 0 ){

				 sum++;

			}
		}
		cout << sum;
	}