#include <cstdio>

using namespace std;
int v[100000];

int main()
{
    freopen("sum.in", "r", stdin);
    freopen("sum.out", "w", stdout);
    int n,x,i,j;
    for(i=1; i<=100000; i++)
        v[i]=i-1;
    for(i=2; i<100000; i++)
        for(j=i<<1; j<100000; j+=i)
            v[j]=v[j]-v[i];
    scanf("%d",&n);
    for(i=1; i<=n; ++i)
    {
        scanf("%d",&x);
        printf("%lld\n",1LL*(x<<1)*v[x]);
    }
    return 0;
}