Q: What is the sum of all factors of the number 109,840 excluding 109,840?
A: 145,724
The factors of the number 109,840 are: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1373, 2746, 5492, 6865, 10984, 13730, 21968, 27460, 54920, 109840.
If you add them up, you will get the total of 109,985. Now subtract 109,840 to get 145,724