Q: What is the sum of all factors of the number 9,900 including 9,900?

A: 33,852

Why is 33,852 the sum of all factors of 9,900, including 9,900?

The factors of the number 9,900 are: 1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 25, 30, 33, 36, 44, 45, 50, 55, 60, 66, 75, 90, 99, 100, 110, 132, 150, 165, 180, 198, 220, 225, 275, 300, 330, 396, 450, 495, 550, 660, 825, 900, 990, 1100, 1650, 1980, 2475, 3300, 4950, 9900.

If you add them up, you will get the total of 33,852.