Q: What is the sum of all factors of the number 1,220,640 including 1,220,640?

A: 3,846,528

Why is 3,846,528 the sum of all factors of 1,220,640, including 1,220,640?

The factors of the number 1,220,640 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, 2543, 5086, 7629, 10172, 12715, 15258, 20344, 25430, 30516, 38145, 40688, 50860, 61032, 76290, 81376, 101720, 122064, 152580, 203440, 244128, 305160, 406880, 610320, 1220640.

If you add them up, you will get the total of 3,846,528.