#include<iostream>
#include<cmath>
using namespace std;

int main(){
    int n;
    cin >> n;
    long long ans = 0;
    double x = sqrt(n);
    for(int i = 1; i <= x; i++){
        if(n%i == 0)    ans += 2;
    }

    if(ceil(x) == floor(x)) ans--;

    cout << ans << endl;
    return 0;
}