#include <bits/stdc++.h>
using namespace std;
long long spf[101];
long long arr[100001];
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(0);
  cout.tie(0);
  long long n;
  cin >> n;
  long long sum = 0;
  for (int i = 0; i < n; i++) {
    cin >> arr[i];
    sum += arr[i];
  }
  long long sum1 = sum;
  sort(arr, arr + n);
  for (int i = 0; i < n; i++) {
    for (long long j = 1; j <= arr[i]; j++) {
      if (arr[i] % j == 0) {
        long long sum2 = sum + arr[0] * (j - 1) + arr[i] / j - arr[i];
        sum1 = min(sum2, sum1);
      }
    }
  }
  cout << sum1;
  return 0;
}
