50求调

#include <bits/stdc++.h>
using namespace std;
#define int long long
int t,n,a[1000005];
bool s[100000005]; 
signed main()
{
    ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	cin>>t;
	while(t--)
	{
		cin>>n;
		int sum=1;
		a[sum]=0;
		memset(s,0,sizeof(s));
		for(int i=1;i*i<=n;i++)
		{
			if(s[n/i]==0)
			{
				a[++sum]=n/i;
				s[n/i]=1;
			}
			if(s[i]==0)
			{
				a[++sum]=i;
			}
		}
		sort(a+1,a+sum+1);
		cout<<sum<<"\n";
		for(int i=1;i<=sum;i++) cout<<a[i]<<" ";
		cout<<"\n";
	}
	return 0;
}