#include<bits/stdc++.h>
#define rep(i,a,b) for(int i=a;i<b;i++)
#define rrep(i,a,b) for(int i=a;i>=b;i--)
#define fore(i,a) for(auto &i:a)
#pragma GCC optimize ("-O3")
using namespace std; void _main(); int main() { cin.tie(0); ios::sync_with_stdio(false); _main(); }
//---------------------------------------------------------------------------------------------------
typedef long long ll;
map<ll, int> enumpr(ll n) {
    map<ll, int> V;
    for (ll i = 2; i*i <= n; i++) while (n%i == 0) V[i]++, n /= i;
    if (n>1) V[n]++;
    return V;
}





int N; ll A[101];
//---------------------------------------------------------------------------------------------------
void _main() {
    cin >> N;
    rep(i, 0, N) cin >> A[i];

    ll ans = 0;
    rep(i, 0, N) {
        ll n = 1;
        auto ep = enumpr(A[i]);
        for (auto ite = ep.rbegin(); ite != ep.rend(); ite++) {
            auto p = *ite;
            rep(i, 0, p.second) {
                ans += n;
                n *= p.first;
            }
        }
        ans += A[i];
    }
    cout << ans << endl;
}