Q: What is the sum of all factors of the number 280,438 excluding 280,438?
A: 142,562
The factors of the number 280,438 are: 1, 2, 281, 499, 562, 998, 140219, 280438.
If you add them up, you will get the total of 280,580. Now subtract 280,438 to get 142,562