Q: What is the sum of all factors of the number 15,400 excluding 15,400?

A: 29,240

Why is 29,240 the sum of all factors of 15,400, excluding 15,400?

The factors of the number 15,400 are: 1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 25, 28, 35, 40, 44, 50, 55, 56, 70, 77, 88, 100, 110, 140, 154, 175, 200, 220, 275, 280, 308, 350, 385, 440, 550, 616, 700, 770, 1100, 1400, 1540, 1925, 2200, 3080, 3850, 7700, 15400.

If you add them up, you will get the total of 15,429. Now subtract 15,400 to get 29,240