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