Q: What is the sum of all factors of the number 639,664 including 639,664?
A: 1,239,380
The factors of the number 639,664 are: 1, 2, 4, 8, 16, 39979, 79958, 159916, 319832, 639664.
If you add them up, you will get the total of 1,239,380.