Q: What is the sum of all factors of the number 20,400 including 20,400?

A: 69,192

Why is 69,192 the sum of all factors of 20,400, including 20,400?

The factors of the number 20,400 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 25, 30, 34, 40, 48, 50, 51, 60, 68, 75, 80, 85, 100, 102, 120, 136, 150, 170, 200, 204, 240, 255, 272, 300, 340, 400, 408, 425, 510, 600, 680, 816, 850, 1020, 1200, 1275, 1360, 1700, 2040, 2550, 3400, 4080, 5100, 6800, 10200, 20400.

If you add them up, you will get the total of 69,192.