Q: What is the sum of all factors of the number 25,640 excluding 25,640?
A: 32,140
The factors of the number 25,640 are: 1, 2, 4, 5, 8, 10, 20, 40, 641, 1282, 2564, 3205, 5128, 6410, 12820, 25640.
If you add them up, you will get the total of 25,672. Now subtract 25,640 to get 32,140