#include <iostream>
#include <math.h>
using namespace std;

int main(void){
    int N;
	cin >> N;

    int result = 0;
    
    // 平方数か判定
    int sqrtN = (int)floor(sqrt(N + 0.5));
    
    for (int i=1; i<=sqrtN; i++) {
        if (N%i==0) result+=2;
    }
    if (sqrtN*sqrtN == N) {
        result--;
    }

    cout << result << endl;
}