Q: What is the sum of all factors of the number 4,040 excluding 4,040?
A: 5,140
The factors of the number 4,040 are: 1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040.
If you add them up, you will get the total of 4,045. Now subtract 4,040 to get 5,140