Q: What is the sum of all factors of the number 135,840 excluding 135,840?

A: 293,568

Why is 293,568 the sum of all factors of 135,840, excluding 135,840?

The factors of the number 135,840 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 283, 480, 566, 849, 1132, 1415, 1698, 2264, 2830, 3396, 4245, 4528, 5660, 6792, 8490, 9056, 11320, 13584, 16980, 22640, 27168, 33960, 45280, 67920, 135840.

If you add them up, you will get the total of 136,133. Now subtract 135,840 to get 293,568