Q: What is the sum of all factors of the number 2,160 excluding 2,160?
A: 5,280
The factors of the number 2,160 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160.
If you add them up, you will get the total of 2,165. Now subtract 2,160 to get 5,280