完全数(网上找的，仅自用，非原创)

Posted 2020-10-29 v123ve

for (int i = 2; i <= 1000; i++)
{
int sum = 0;
string s = "";
for (int j = 1; j < i; j++)
{
if (i % j == 0)
{
sum += j;
s = s + j + "\t";
}
}
if (sum == i)
Console.WriteLine("{0}\t{1}",i,s);
}