#include <stdio.h>         
        
int n;
long long phi[100010];      
long long sum;         
        
void totient(int n)
{
    int i,j;
    for (i=2;i<=n;++i) phi[i]=i;
    for (i=2;i<=n;++i)
         if (phi[i]==i)
             for (j=i;j<=n;j+=i)
                  {
                   phi[j]/=i;
                   phi[j]*=(i-1);
                  }
}                  
        
int main()         
{       
int T;        
freopen("sum.in","r",stdin);         
scanf("%d", &T);
freopen("sum.out","w",stdout);      
while (T--)         
{         
scanf("%d", &n); 
totient(n);
printf("%lld\n",2*n*phi[n]);    
}         
return 0;         
}