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

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

int main() {
    int N;
    cin >> N;
    vector<int> A(N);
    for (auto &a : A) cin >> a;
    map<int, int> m;
    for (int i = 0; i < N; i++) {
        vector<int> a;
        a.push_back(A[i]);
        for (auto &[k, v] : m) {
            for (int j = 0; j < v; j++) a.push_back(gcd(A[i], k));
        }
        for (auto e : a) {
            if (m.count(e) == 0) m[e] = 1;
            else m[e]++;
        }
    }
    cout << m[1] << endl;
}