Q: What is the sum of all factors of the number 639,556 excluding 639,556?
A: 485,624
The factors of the number 639,556 are: 1, 2, 4, 281, 562, 569, 1124, 1138, 2276, 159889, 319778, 639556.
If you add them up, you will get the total of 640,041. Now subtract 639,556 to get 485,624