Q: What is the sum of all factors of the number 58,140 excluding 58,140?

A: 138,420

Why is 138,420 the sum of all factors of 58,140, excluding 58,140?

The factors of the number 58,140 are: 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 19, 20, 30, 34, 36, 38, 45, 51, 57, 60, 68, 76, 85, 90, 95, 102, 114, 153, 170, 171, 180, 190, 204, 228, 255, 285, 306, 323, 340, 342, 380, 510, 570, 612, 646, 684, 765, 855, 969, 1020, 1140, 1292, 1530, 1615, 1710, 1938, 2907, 3060, 3230, 3420, 3876, 4845, 5814, 6460, 9690, 11628, 14535, 19380, 29070, 58140.

If you add them up, you will get the total of 58,278. Now subtract 58,140 to get 138,420