#include <cstdio>
using namespace std;
int phi[1000005];
void ciur(int n)
{
    for (register int i=1;i<=n;++i)
        phi[i]=i;
    for (register int i=2;i<=n;++i)
        if (phi[i]==i)
        {
            for (register int j=2*i;j<=n;j+=i)
                phi[j]=phi[j]/i*(i-1);
            phi[i]=i-1;
        }
}
int main()
{
    freopen("sum.in","r",stdin);
    freopen("sum.out","w",stdout);
    int t,n;
    scanf("%d",&t);
    ciur(200005);
    for (register int i=1;i<=t;++i)
    {
        scanf("%d",&n);
        printf("%lld\n",(long long)2*n*phi[n]);
    }
    return 0;
}