Q: What is the sum of all factors of the number 621,500 excluding 621,500?

A: 872,356

Why is 872,356 the sum of all factors of 621,500, excluding 621,500?

The factors of the number 621,500 are: 1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 113, 125, 220, 226, 250, 275, 452, 500, 550, 565, 1100, 1130, 1243, 1375, 2260, 2486, 2750, 2825, 4972, 5500, 5650, 6215, 11300, 12430, 14125, 24860, 28250, 31075, 56500, 62150, 124300, 155375, 310750, 621500.

If you add them up, you will get the total of 622,372. Now subtract 621,500 to get 872,356