#include<bits/stdc++.h>
using namespace std;
using LL = long long;
void solve(){
    LL n;
    cin >> n;
    LL res = 0;
    for(LL i = 1; i * i <= n; ++i){
        if(n % i == 0){
            ++res;
            if(i * i != n){
                ++res;
            }
        }
    }
    cout << res << "\n";
}
int main(){
    ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);
    #ifdef ONLINE_JUDGE
       
    #else
        
    #endif
    int T = 1;
    // cin >> T;
    while(T--)solve();
}