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A10151. REQ

编程题 普及/提高-

题目描述

Today on a math lesson the teacher told Vovochka that the Euler function of a positive integer $φ(n)$ is an arithmetic function that counts the positive integers less than or equal to n that are relatively prime to n. The number $1$ is coprime to all the positive integers and $φ(1)=1$ .

Now the teacher gave Vovochka an array of $n$ positive integers $a_{1},a_{2},...,a_{n}$ and a task to process $q$ queries $l_{i}$ $r_{i}$ — to calculate and print ![](/uploads/acgo/image/5882fe3c760f832b_54ecad3e50da.jpeg) modulo $10^{9}+7$ . As it is too hard for a second grade school student, you've decided to help Vovochka.

输入格式

The first line of the input contains number $n$ ( $1<=n<=200000$ ) — the length of the array given to Vovochka. The second line contains $n$ integers $a_{1},a_{2},...,a_{n}$ ( $1<=a_{i}<=10^{6}$ ).

The third line contains integer $q$ ( $1<=q<=200000$ ) — the number of queries. Next $q$ lines contain the queries, one per line. Each query is defined by the boundaries of the segment $l_{i}$ and $r_{i}$ ( $1<=l_{i}<=r_{i}<=n$ ).

输出格式

Print $q$ numbers — the value of the Euler function for each query, calculated modulo $10^{9}+7$ .

输入输出样例

输入 #1
10
1 2 3 4 5 6 7 8 9 10
7
1 1
3 8
5 6
4 8
8 10
7 9
7 10
输出 #1
1
4608
8
1536
192
144
1152
输入 #2
7
24 63 13 52 6 10 1
6
3 5
4 7
1 7
2 4
3 6
2 6
输出 #2
1248
768
12939264
11232
9984
539136

说明/提示

In the second sample the values are calculated like that:

- $φ(13·52·6)=φ(4056)=1248$
- $φ(52·6·10·1)=φ(3120)=768$
- $φ(24·63·13·52·6·10·1)=φ(61326720)=12939264$
- $φ(63·13·52)=φ(42588)=11232$
- $φ(13·52·6·10)=φ(40560)=9984$
- $φ(63·13·52·6·10)=φ(2555280)=539136$
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