Q: What is the sum of all factors of the number 40,020 including 40,020?

A: 120,960

Why is 120,960 the sum of all factors of 40,020, including 40,020?

The factors of the number 40,020 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 29, 30, 46, 58, 60, 69, 87, 92, 115, 116, 138, 145, 174, 230, 276, 290, 345, 348, 435, 460, 580, 667, 690, 870, 1334, 1380, 1740, 2001, 2668, 3335, 4002, 6670, 8004, 10005, 13340, 20010, 40020.

If you add them up, you will get the total of 120,960.