#include<bits/stdc++.h>
using namespace std;
int main()
{
	freopen("BAI1.INP", "r", stdin);
	freopen("BAI1.OUT", "w", stdout);
	ios_base :: sync_with_stdio(0);
	cin.tie(0); cout.tie(0);
	long long n,dem = 0;
	cin >> n;
	for (long long i = 1; i*i <= n; i++) if (n % i == 0) dem += 2;
	if (sqrt(n) == trunc(sqrt(n))) dem--;
	cout << dem;
	return 0;
}