提交时间:2022-08-08 11:30:50
运行 ID: 54921
#include<bits/stdc++.h> using namespace std; #define ll long long inline int read() { static int x=0,c=getchar(); for(; c<=47||c>=58; c=getchar()); for(x=0; c>=48&&c<=57; c=getchar()) x=(x<<3)+(x<<1)+(c&15); return x; } ll mod=998244353,ans=1; int a,b,t,cnt=1,tmp; int prime[9600]= 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int num[9600],x[8]; ll quickpow(int a,int n) { ll ans=1; ll temp=a; while(n) { if(n&1) ans=ans*temp%mod; n>>=1; temp=temp*temp%mod; } return ans%mod; } ll getnum(int c,int n) { ll sum=0; for(int i=0; i<=n; i++) sum+=quickpow(c,i); return sum; } void dd(int n) { if(n==1) return ; for(int i=1; i<=9592; i++) if(n%prime[i]==0) { if(i!=tmp) { x[cnt]=i; cnt++; tmp=i; } num[i]++; dd(n/prime[i]); } } int main() { t=read(); while(t--) { ans=1,tmp=0,cnt=1; memset(num,0,sizeof(num)); memset(x,0,sizeof(x)); a=read(),b=read(); dd(a); for(int i=1; i<cnt; i++) { num[x[i]]*=b; ans=ans*getnum(prime[x[i]],num[x[i]])%mod; } printf("%lld\n",ans); } return 0; }