Q: What is the sum of all factors of the number 668,406 excluding 668,406?
A: 747,258
The factors of the number 668,406 are: 1, 2, 3, 6, 17, 34, 51, 102, 6553, 13106, 19659, 39318, 111401, 222802, 334203, 668406.
If you add them up, you will get the total of 669,153. Now subtract 668,406 to get 747,258