Q: What is the sum of all factors of the number 420,030,345 excluding 420,030,345?

A: 374,515,575

Why is 374,515,575 the sum of all factors of 420,030,345, excluding 420,030,345?

The factors of the number 420,030,345 are: 1, 3, 5, 7, 15, 21, 29, 35, 87, 105, 145, 203, 435, 609, 1015, 3045, 137941, 413823, 689705, 965587, 2069115, 2896761, 4000289, 4827935, 12000867, 14483805, 20001445, 28002023, 60004335, 84006069, 140010115, 420030345.

If you add them up, you will get the total of 420,030,719. Now subtract 420,030,345 to get 374,515,575