#include <bits/stdc++.h>
#define rep(i,n) for(int i=0;i<(n);++i)
#define all(a) (a).begin(),(a).end()
#define dunk(a) cout << (a) << endl
using namespace std;
typedef long long ll;

int main() {
	ios::sync_with_stdio(false);
	cin.tie(0);
	ll n;
	cin >> n;

	ll res = 0;
	int del = 0;

	for (int i = 1; i <= sqrt(n); ++i) {
		if (n % i == 0) res++;
		if (ll(i * i) == n) del++;
	}

	ll ans = 2ll * res - del;

	dunk(ans);

	return 0;
}