#include <iostream>
#include <cmath>
typedef long long ll;
using namespace std;

int main(){
    int N;
    cin >> N;
    int cnt = 0;
    bool hit = false;
    for (ll i = 1; i * i <= N; i++) {
        if (i * i == N) {
            hit = true;
            break;
        }
        if (N % i == 0) cnt++;
    }
    cnt = (hit)? 2 * cnt + 1 : 2 * cnt;
    cout << cnt << endl;
    return 0;
}