Q: What is the sum of all factors of the number 396,040 excluding 396,040?
A: 495,140
The factors of the number 396,040 are: 1, 2, 4, 5, 8, 10, 20, 40, 9901, 19802, 39604, 49505, 79208, 99010, 198020, 396040.
If you add them up, you will get the total of 396,535. Now subtract 396,040 to get 495,140