Q: What is the sum of all factors of the number 209,240 excluding 209,240?
A: 261,640
The factors of the number 209,240 are: 1, 2, 4, 5, 8, 10, 20, 40, 5231, 10462, 20924, 26155, 41848, 52310, 104620, 209240.
If you add them up, you will get the total of 209,501. Now subtract 209,240 to get 261,640