#define _USE_MATH_DEFINES
#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
#include<string>
#include<iostream>
#include<iostream>
#include<cctype>
#include<cstdio>
#include<vector>
#include<stack>
#include<queue>
#include <algorithm>
#include<math.h>
#include<set>
#include<map>
#include <sstream>
#include<iomanip>
#include <ctype.h>
using namespace std;

//#include<bits/stdc++.h>



int main() {
	
	long long int n;
	cin >> n;
	long long int a = 0;
	for(int i=1;i*i<=n;i++){

		if (n%i == 0) {
			if (n == i*i)a++;
			else a += 2;
		}
	
	
	}
	cout << a << endl;

	return 0;
}