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- #include <bits/stdc++.h>
- using namespace std;
- using lli = long long;
- int main(){
- int n;
- scanf("%d", &n);
- lli gcd;
- scanf("%lld", &gcd);
- for(int i=2;i<=n;i++){
- lli x;
- scanf("%lld", &x);
- gcd = __gcd(x, gcd);
- }
- int cnt = 0;
- lli sq = (lli) sqrt(gcd);
- for(lli i=1;i<=sq;i++) cnt += (gcd % i == 0);
- if(sq * sq == gcd) printf("%d", 2 * cnt - 1);
- else printf("%d", 2 * cnt);
- return 0;
- }
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