#include"bits/stdc++.h"
#define _overload3(_1,_2,_3,name,...) name
#define _rep(i,n) repi(i,0,n)
#define repi(i,a,b) for(int i=(a);i<(b);++i)
#define rep(...) _overload3(__VA_ARGS__,repi,_rep,)(__VA_ARGS__)
#define All(x) (x).begin(),(x).end()
#define rAll(x) (x).rbegin(),(x).rend()
using namespace std;
using ll = long long;


int gcd(int x,int y){return y?gcd(y,x%y):x;}

int main(){
    int N;cin>>N;
    int M=0, G=0;
    ll S=0;
    vector<int> A(N);
    rep(i,N){
        cin>>A[i];
        M=max(M, A[i]);
        G=gcd(G, A[i]);
        S += A[i];
    }
    vector<ll> mi(M+1, 0);
    rep(i,N){
        for(int j=1;j*j<=A[i];++j){
            if(A[i]%j==0){
                mi[j] += A[i] - A[i]/j;
                if(j*j!=A[i]){
                	mi[A[i]/j] += A[i]-j;
                }
            }
        }
    }
    ll X=S;
    rep(i,2,M+1) if(i%G==0){
        X = min(X, S-mi[i]);
    }
    cout<<X<<endl;
}