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

int64_t gcd(int64_t a, int64_t b){
    return b==0 ? a : gcd(b, a%b);
}

int main(){
    int N, A[50];
    cin >> N;
    for(int i=0; i<N; i++) cin >> A[i];
    map<int, int64_t> mp;
    mp[0] = 1;
    for(int i=0; i<N; i++){
        vector<pair<int, int64_t>> pool;
        for(auto& p : mp) pool.emplace_back(gcd(p.first, A[i]), p.second);
        for(auto& p : pool) mp[p.first] += p.second;
    }
    cout << mp[1] << endl;
    return 0;
}