Q: What is the sum of all factors of the number 280,078 excluding 280,078?
A: 143,642
The factors of the number 280,078 are: 1, 2, 131, 262, 1069, 2138, 140039, 280078.
If you add them up, you will get the total of 280,221. Now subtract 280,078 to get 143,642