Q: What is the sum of all factors of the number 138,640 excluding 138,640?
A: 183,884
The factors of the number 138,640 are: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1733, 3466, 6932, 8665, 13864, 17330, 27728, 34660, 69320, 138640.
If you add them up, you will get the total of 138,823. Now subtract 138,640 to get 183,884