Q: What is the sum of all factors of the number 166,640,565 excluding 166,640,565?

A: 161,515,851

Why is 161,515,851 the sum of all factors of 166,640,565, excluding 166,640,565?

The factors of the number 166,640,565 are: 1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 122081, 366243, 610405, 854567, 1587053, 1831215, 2563701, 4272835, 4761159, 7935265, 11109371, 12818505, 23805795, 33328113, 55546855, 166640565.

If you add them up, you will get the total of 166,640,726. Now subtract 166,640,565 to get 161,515,851