Q: What is the sum of all factors of the number 387,400 excluding 387,400?

A: 589,100

Why is 589,100 the sum of all factors of 387,400, excluding 387,400?

The factors of the number 387,400 are: 1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 149, 200, 260, 298, 325, 520, 596, 650, 745, 1192, 1300, 1490, 1937, 2600, 2980, 3725, 3874, 5960, 7450, 7748, 9685, 14900, 15496, 19370, 29800, 38740, 48425, 77480, 96850, 193700, 387400.

If you add them up, you will get the total of 387,989. Now subtract 387,400 to get 589,100