#include <iostream>
#include <vector>
#include <algorithm>
#include <math.h>
#include <map>

#define ALL(x) (x).begin(),(x).end()
#define RALL(x) (x).rbegin(),(x).rend()
#define REP(i,a,n) for(int i = (a);i < (n);i++)
#define PI 3.14159265359
#define MOD 1000000007

using namespace std;

int main(){
    long long n,count = 0;
    cin >> n;
    REP(i, 1, n+1){
        if(n%i == 0)count++;
    }
    cout << count << endl;
    return 0;
}