Q: What is the sum of all factors of the number 128,742 excluding 128,742?
A: 135,258
The factors of the number 128,742 are: 1, 2, 3, 6, 43, 86, 129, 258, 499, 998, 1497, 2994, 21457, 42914, 64371, 128742.
If you add them up, you will get the total of 128,877. Now subtract 128,742 to get 135,258