Q: What is the sum of all factors of the number 307,680 excluding 307,680?

A: 663,024

Why is 663,024 the sum of all factors of 307,680, excluding 307,680?

The factors of the number 307,680 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 641, 1282, 1923, 2564, 3205, 3846, 5128, 6410, 7692, 9615, 10256, 12820, 15384, 19230, 20512, 25640, 30768, 38460, 51280, 61536, 76920, 102560, 153840, 307680.

If you add them up, you will get the total of 308,343. Now subtract 307,680 to get 663,024