Q: What is the sum of all factors of the number 63,240 excluding 63,240?

A: 144,120

Why is 144,120 the sum of all factors of 63,240, excluding 63,240?

The factors of the number 63,240 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 31, 34, 40, 51, 60, 62, 68, 85, 93, 102, 120, 124, 136, 155, 170, 186, 204, 248, 255, 310, 340, 372, 408, 465, 510, 527, 620, 680, 744, 930, 1020, 1054, 1240, 1581, 1860, 2040, 2108, 2635, 3162, 3720, 4216, 5270, 6324, 7905, 10540, 12648, 15810, 21080, 31620, 63240.

If you add them up, you will get the total of 63,384. Now subtract 63,240 to get 144,120