#include <iostream>
#include <vector>
#include <map>

using namespace std;

using ll = long long;

template<typename T>
T gcd_(T a, T b) {
    while (b) {
        T tmp = b;
        b = a % b;
        a = tmp;
    }
    return a;
}

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

	int n;
	cin >> n;

	vector<int> a(n);
	for (int i = 0; i < n; i++) cin >> a[i];

	map<int, ll> dp;
	for (int x : a) {
		for (auto& p : dp) {
			dp[gcd_(p.first, x)] += p.second;
		}
		
		dp[x]++;
	}
	cout << dp[1] << endl;
	return 0;
}