#include <iostream>
#include <vector>
#include <map>
#define int long long
#define rep(i, n) for(i = 0; i < n; i++)
using namespace std;

int gcd(int a, int b) {
	if (b == 0) return a;
	return gcd(b, a % b);
}

int n;
int a[50];
map<int, int> dp[51];	//dp[i][j] = (gcd(空列の場合は0), 何通り)

signed main() {
	int i;
	
	cin >> n;
	rep(i, n) cin >> a[i];
	
	dp[0][0] = 1;
	rep(i, n) {
		for (map<int, int>::iterator it = dp[i].begin(); it != dp[i].end(); it++) {
			int g = it->first;
			int kosuu = it->second;
			
			//a[i]を使わない
			dp[i + 1][g] += dp[i][g];
			
			//a[i]を使う
			dp[i + 1][gcd(a[i], g)] += dp[i][g];
		}
	}
	
	cout << dp[n][1] << endl;
	return 0;
}