Q: What is the sum of all factors of the number 123,280 excluding 123,280?
A: 180,272
The factors of the number 123,280 are: 1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 67, 80, 92, 115, 134, 184, 230, 268, 335, 368, 460, 536, 670, 920, 1072, 1340, 1541, 1840, 2680, 3082, 5360, 6164, 7705, 12328, 15410, 24656, 30820, 61640, 123280.
If you add them up, you will get the total of 123,460. Now subtract 123,280 to get 180,272