Q: What is the sum of all factors of the number 280,137 excluding 280,137?
A: 159,351
The factors of the number 280,137 are: 1, 3, 11, 13, 33, 39, 143, 429, 653, 1959, 7183, 8489, 21549, 25467, 93379, 280137.
If you add them up, you will get the total of 280,296. Now subtract 280,137 to get 159,351