Q: What is the sum of all factors of the number 55,080 excluding 55,080?

A: 140,940

Why is 140,940 the sum of all factors of 55,080, excluding 55,080?

The factors of the number 55,080 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 27, 30, 34, 36, 40, 45, 51, 54, 60, 68, 72, 81, 85, 90, 102, 108, 120, 135, 136, 153, 162, 170, 180, 204, 216, 255, 270, 306, 324, 340, 360, 405, 408, 459, 510, 540, 612, 648, 680, 765, 810, 918, 1020, 1080, 1224, 1377, 1530, 1620, 1836, 2040, 2295, 2754, 3060, 3240, 3672, 4590, 5508, 6120, 6885, 9180, 11016, 13770, 18360, 27540, 55080.

If you add them up, you will get the total of 55,220. Now subtract 55,080 to get 140,940