#include <bits/stdc++.h>

using namespace std;
long maxMoves(long x){
    if(x==1) return 1;
    long max=1+x;
    for(long i=2;i*i<=x;i++){
        if(x%i==0){
            long aMoves=1+i*maxMoves(x/i);
            long bMoves=1+(x/i)*maxMoves(i);
            if(aMoves>max)max=aMoves;
            if(bMoves>max)max=bMoves;
        }
    }
    return max;
}
long longestSequence(vector <long> a) {
    long result = 0;
    for(auto x:a){
        result+=maxMoves(x);
    }
    return result;
}

int main() {
    int n;
    cin >> n;
    vector<long> a(n);
    for(int a_i = 0; a_i < n; a_i++){
       cin >> a[a_i];
    }
    long result = longestSequence(a);
    cout << result << endl;
    return 0;
}