Q: What is the sum of all factors of the number 42,040 excluding 42,040?
A: 52,640
The factors of the number 42,040 are: 1, 2, 4, 5, 8, 10, 20, 40, 1051, 2102, 4204, 5255, 8408, 10510, 21020, 42040.
If you add them up, you will get the total of 42,092. Now subtract 42,040 to get 52,640