#include <bits/stdc++.h>
#define rep(i, n) for(int i = 0; i < (int)n; i++)
using namespace std;
using ll = long long;
using P = pair<ll, ll>;
constexpr ll mod = 1000000007;

int main() {
    int n;
    cin >> n;
    vector<int> a(n);
    rep(i, n) cin >> a[i];
    set<int> s;
    vector<int> d;
    s.insert(1);
    rep(i, n) {
        for(int j = 1; j * j <= a[i]; j++) {
            if(a[i] % j == 0) {
                if(!s.count(j)) {
                    s.insert(j);
                    d.push_back(j);
                }
                if(!s.count(a[i] / j)) {
                    s.insert(a[i] / j);
                    d.push_back(a[i] / j);
                }
            }
        }
    }
    sort(d.begin(), d.end());
    reverse(d.begin(), d.end());
    int m = (int)d.size();
    vector<ll> dp(m, 0);
    ll ans = (1LL << n) - 1;
    rep(i, m) {
        int c = 0;
        rep(j, n) if(a[j] % d[i] == 0) c++;
        dp[i] = (1LL << c) - 1;
        for(int j = 0; j < i; j++) {
            if(d[j] % d[i] == 0) {
                dp[i] -= dp[j];
            }
        }
        ans -= dp[i];
    }
    cout << ans << endl;
    return 0;
}