Q: What is the sum of all factors of the number 87,480 excluding 87,480?

A: 207,720

Why is 207,720 the sum of all factors of 87,480, excluding 87,480?

The factors of the number 87,480 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 243, 270, 324, 360, 405, 486, 540, 648, 729, 810, 972, 1080, 1215, 1458, 1620, 1944, 2187, 2430, 2916, 3240, 3645, 4374, 4860, 5832, 7290, 8748, 9720, 10935, 14580, 17496, 21870, 29160, 43740, 87480.

If you add them up, you will get the total of 87,687. Now subtract 87,480 to get 207,720