Q: What is the sum of all factors of the number 1,299,280 including 1,299,280?

A: 3,069,000

Why is 3,069,000 the sum of all factors of 1,299,280, including 1,299,280?

The factors of the number 1,299,280 are: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 149, 218, 298, 436, 545, 596, 745, 872, 1090, 1192, 1490, 1744, 2180, 2384, 2980, 4360, 5960, 8720, 11920, 16241, 32482, 64964, 81205, 129928, 162410, 259856, 324820, 649640, 1299280.

If you add them up, you will get the total of 3,069,000.