Q: What is the sum of all factors of the number 400,156,240 excluding 400,156,240?

A: 614,787,728

Why is 614,787,728 the sum of all factors of 400,156,240, excluding 400,156,240?

The factors of the number 400,156,240 are: 1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 454723, 909446, 1818892, 2273615, 3637784, 4547230, 5001953, 7275568, 9094460, 10003906, 18188920, 20007812, 25009765, 36377840, 40015624, 50019530, 80031248, 100039060, 200078120, 400156240.

If you add them up, you will get the total of 400,156,854. Now subtract 400,156,240 to get 614,787,728