#include <iostream>
#include <cstdio>
#include <cstring>
#include <vector>
#include <deque>
#include <queue>
#include <array>
#include <set>
#include <map>
#include <cmath>
#include <complex>
#include <algorithm>
#include <numeric>
#include <utility>
#include <tuple>
#include <functional>
#include <bitset>
#include <cstdint>
#include <cassert>
#include <random>

using namespace std;
using i64 = int64_t;
using i32 = int32_t;

int gcd(int x, int y) {
    while (x % y != 0) {
        x %= y;
        swap(x, y);
    }
    return y;
}
int main() {
    int n;
    cin >> n;
    int a[50];
    for (int i = 0; i < n; ++i) {
        cin >> a[i];
    }
    map<int, i64> mp;
    for (int i = 0; i < n; ++i) {
        auto mp_new = mp;
        for (auto [x, c] : mp) {
            mp_new[gcd(x, a[i])] += c;
        }
        mp_new[a[i]]++;
        mp = mp_new;
    }
    cout << mp[1] << endl;
    return 0;
}