Q: What is the sum of all factors of the number 40,390 excluding 40,390?
A: 42,842
The factors of the number 40,390 are: 1, 2, 5, 7, 10, 14, 35, 70, 577, 1154, 2885, 4039, 5770, 8078, 20195, 40390.
If you add them up, you will get the total of 40,432. Now subtract 40,390 to get 42,842