Q: What is the sum of all factors of the number 23,220 including 23,220?

A: 73,920

Why is 73,920 the sum of all factors of 23,220, including 23,220?

The factors of the number 23,220 are: 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 43, 45, 54, 60, 86, 90, 108, 129, 135, 172, 180, 215, 258, 270, 387, 430, 516, 540, 645, 774, 860, 1161, 1290, 1548, 1935, 2322, 2580, 3870, 4644, 5805, 7740, 11610, 23220.

If you add them up, you will get the total of 73,920.