#include <bits/stdc++.h>
using namespace std;

int main() {
	int n; cin >> n;
	int a[n]; for(int i = 0; i < n; ++i) cin >> a[i];
	map<int, int64_t> ans;
	ans[a[0]] = 1;
	for(int i = 1; i < n; ++i) {
		map<int, int64_t> ret;
		for(auto e : ans) {
			ret[e.first] += e.second;
			ret[__gcd(e.first, a[i])] += e.second;
		}
		ret[a[i]]++;
		ans = ret;
	}
	cout << ans[1] << '\n';
	return 0;
}