Q: What is the sum of all factors of the number 285,420 excluding 285,420?

A: 537,108

Why is 537,108 the sum of all factors of 285,420, excluding 285,420?

The factors of the number 285,420 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 67, 71, 134, 142, 201, 213, 268, 284, 335, 355, 402, 426, 670, 710, 804, 852, 1005, 1065, 1340, 1420, 2010, 2130, 4020, 4260, 4757, 9514, 14271, 19028, 23785, 28542, 47570, 57084, 71355, 95140, 142710, 285420.

If you add them up, you will get the total of 285,957. Now subtract 285,420 to get 537,108