Q: What is the sum of all factors of the number 26,640 excluding 26,640?

A: 65,244

Why is 65,244 the sum of all factors of 26,640, excluding 26,640?

The factors of the number 26,640 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 37, 40, 45, 48, 60, 72, 74, 80, 90, 111, 120, 144, 148, 180, 185, 222, 240, 296, 333, 360, 370, 444, 555, 592, 666, 720, 740, 888, 1110, 1332, 1480, 1665, 1776, 2220, 2664, 2960, 3330, 4440, 5328, 6660, 8880, 13320, 26640.

If you add them up, you will get the total of 26,705. Now subtract 26,640 to get 65,244