Q: What is the sum of all factors of the number 171,720 excluding 171,720?

A: 416,340

Why is 416,340 the sum of all factors of 171,720, excluding 171,720?

The factors of the number 171,720 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 53, 54, 60, 72, 81, 90, 106, 108, 120, 135, 159, 162, 180, 212, 216, 265, 270, 318, 324, 360, 405, 424, 477, 530, 540, 636, 648, 795, 810, 954, 1060, 1080, 1272, 1431, 1590, 1620, 1908, 2120, 2385, 2862, 3180, 3240, 3816, 4293, 4770, 5724, 6360, 7155, 8586, 9540, 11448, 14310, 17172, 19080, 21465, 28620, 34344, 42930, 57240, 85860, 171720.

If you add them up, you will get the total of 172,136. Now subtract 171,720 to get 416,340