Q: What is the sum of all factors of the number 400,604,920 excluding 400,604,920?

A: 525,120,680

Why is 525,120,680 the sum of all factors of 400,604,920, excluding 400,604,920?

The factors of the number 400,604,920 are: 1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 270679, 541358, 1082716, 1353395, 2165432, 2706790, 5413580, 10015123, 10827160, 20030246, 40060492, 50075615, 80120984, 100151230, 200302460, 400604920.

If you add them up, you will get the total of 400,605,445. Now subtract 400,604,920 to get 525,120,680