Q: What is the sum of all factors of the number 258,480 excluding 258,480?

A: 612,000

Why is 612,000 the sum of all factors of 258,480, excluding 258,480?

The factors of the number 258,480 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 359, 360, 718, 720, 1077, 1436, 1795, 2154, 2872, 3231, 3590, 4308, 5385, 5744, 6462, 7180, 8616, 10770, 12924, 14360, 16155, 17232, 21540, 25848, 28720, 32310, 43080, 51696, 64620, 86160, 129240, 258480.

If you add them up, you will get the total of 259,092. Now subtract 258,480 to get 612,000