#include <iostream>
#include <algorithm>
#include <string>
#include <vector>

int main() {
	long long n;
	std::cin >> n;

	int ans = 0;
	for (long long i = 1; i * i <= n; i++) {
		if (n % i == 0) {
			ans++;
			if (i * i != n) {
				ans++;
			}
		}
	}
	std::cout << ans << std::endl;
}