Q: What is the sum of all factors of the number 61,640 excluding 61,640?
A: 85,240
The factors of the number 61,640 are: 1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 67, 92, 115, 134, 184, 230, 268, 335, 460, 536, 670, 920, 1340, 1541, 2680, 3082, 6164, 7705, 12328, 15410, 30820, 61640.
If you add them up, you will get the total of 61,725. Now subtract 61,640 to get 85,240