Q: What is the sum of all factors of the number 331,440 excluding 331,440?

A: 696,768

Why is 696,768 the sum of all factors of 331,440, excluding 331,440?

The factors of the number 331,440 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 1381, 2762, 4143, 5524, 6905, 8286, 11048, 13810, 16572, 20715, 22096, 27620, 33144, 41430, 55240, 66288, 82860, 110480, 165720, 331440.

If you add them up, you will get the total of 332,136. Now subtract 331,440 to get 696,768