HDU 1215 七夕节

#include <iostream>
#include <cstdio>
#include <cstring>
using namespace std;
const int Size=500000;
int a[Size+1];
int main()
{
        int m,n,i,j;
        for(int i=1; i<Size+1; i++)
            a[i]=1;
        for(i=2;i<=Size/2;i++)
            for(j=i+i;j<=Size;j+=i)
                a[j]+=i;

        scanf("%d",&m);
        while(m--)
        {
            scanf("%d",&n);
            printf("%d\n",a[n]);
        }
        return 0;
}

#include <iostream>
#include <cstdio>
#include <cstring>
using namespace std;
const int Size=500000;
int a[Size+1];
int main()
{
        int m,n;
        scanf("%d",&m);
        while(m--)
        {
            scanf("%d",&n);
            int sum=1;
            int t=n;
            for(int i=2; i<t; i++)
                    if(n%i==0){
                        sum+=i;
                        if(n/i!=i)
                            sum+=n/i;
                        t=n/i;
                    }

            printf("%d\n",sum);
        }
        return 0;
}