/**
*	author: shafi
*	created: 06.03.2024 17.04.36
**/
#include "bits/stdc++.h"
using namespace std;
#define ll long long int
#define ull unsigned long long int

int main(){
    ios :: sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);

    ll n;
    cin>>n;
    int cnt=0;
    for(int i=1;i*i<=n;i++){
        if(n%i == 0){
            if(n/i == i){
                cnt++;
            }
            else cnt += 2;
        }
    }
    cout<<cnt<<endl;
    return 0;
}