Q: What is the sum of all factors of the number 401,320 including 401,320?
A: 921,600
The factors of the number 401,320 are: 1, 2, 4, 5, 8, 10, 20, 40, 79, 127, 158, 254, 316, 395, 508, 632, 635, 790, 1016, 1270, 1580, 2540, 3160, 5080, 10033, 20066, 40132, 50165, 80264, 100330, 200660, 401320.
If you add them up, you will get the total of 921,600.