40 lines
654 B
C++
40 lines
654 B
C++
#include<bits/stdc++.h>
|
|
#define int long long
|
|
using namespace std;
|
|
int n;
|
|
int a[1005];
|
|
int zs[50005];
|
|
int tot;
|
|
signed main(){
|
|
ios::sync_with_stdio(0);
|
|
cin.tie(0);cout.tie(0);
|
|
cin>>n;
|
|
for(int i=1;i<=n;i++)cin>>a[i];
|
|
for(int i=1;i<=n;i++){
|
|
int t=a[i];
|
|
for(int j=2;j*j<=t;j++){
|
|
if(t%j==0){
|
|
zs[++tot]=j;
|
|
// cout<<j<<" ";
|
|
while(t%j==0)t/=j;
|
|
}
|
|
}
|
|
if(t>1){
|
|
//cout<<t<<" ";
|
|
zs[++tot]=t;
|
|
}
|
|
//cout<<endl;
|
|
}
|
|
sort(zs+1,zs+tot+1);
|
|
tot=unique(zs+1,zs+tot+1)-zs-1;
|
|
int ans=0;
|
|
for(int i=1;i<=tot;i++){
|
|
int now=0;
|
|
int tt=zs[i];
|
|
for(int j=1;j<=n;j++){
|
|
if(a[j]%tt==0)now+=a[j];
|
|
}
|
|
ans=max(ans,now);
|
|
}
|
|
cout<<ans;
|
|
}
|