#include <bits/stdc++.h>
#define rep(i,n) for (int i = 0; i < (n); i ++)
using namespace std;
typedef long long ll;
typedef pair<ll,ll> PL;
typedef pair<int,int> P;
const int INF = 1e9;
const ll MOD = 1e9 + 7;
const vector<int> dy = {-1,0,1,0};
const vector<int> dx = {0,1,0,-1};

int main() {
    int n; cin >> n;
    vector<int> a(n);
    rep(i,n) cin >> a[i];

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