#P5608. function
function
Problem Description
There is a function $f(x)$,which is defined on the natural numbers set $N$,satisfies the following eqaution
$N^2-3N+2=\sum_{d|N} f(d)$
calulate $\sum_{i=1}^{N} f(i)$ $~mod~10^9+7$.
Input
the first line contains a positive integer T,means the number of the test cases.
next T lines there is a number N
$T \leq 500, N \leq 10^9$
only $5~$test cases has $N > 10^6$.
Output
$T$lines,each line contains a number,means the answer to the $i$-th test case.
1
3
2
$1^2-3*1+2=f(1)=0$
$2^2-3*2+2=f(2)+f(1)=0->f(2)=0$
$3^2-3*3+2=f(3)+f(1)=2->f(3)=2$
$f(1)+f(2)+f(3)=2$