UVA 11526 H(n)

#include<cstdio>
#include<iostream>
using namespace std;
typedef long long LL;
void read(long long &x)
{
x=0; char c=getchar(); int f=1;
while(!isdigit(c)) { if(c=='-') f=-1; c=getchar();}
while(isdigit(c)) { x=x*10+c-'0'; c=getchar(); }
x*=f;
}
int main()
{
int T;
LL n,ans;
scanf("%d",&T);
while(T--)
{
read(n);
ans=0;
LL i=1,j;
while(i<=n)
{
j=n/(n/i);
ans+=(j-i+1)*(n/i);
i=j+1;
}
printf("%lld\n",ans);
}
}