Q: What is the sum of all factors of the number 38,880 excluding 38,880?

A: 98,712

Why is 98,712 the sum of all factors of 38,880, excluding 38,880?

The factors of the number 38,880 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 216, 240, 243, 270, 288, 324, 360, 405, 432, 480, 486, 540, 648, 720, 810, 864, 972, 1080, 1215, 1296, 1440, 1620, 1944, 2160, 2430, 2592, 3240, 3888, 4320, 4860, 6480, 7776, 9720, 12960, 19440, 38880.

If you add them up, you will get the total of 38,978. Now subtract 38,880 to get 98,712