What is the sum of the positive factors of 48?
I know that 48 is divisible by 1, 2, 3, 4, 6, 8, 12, 16, 24, and 48, so those are the positive factors of 48. To find the sum of the factors, I can add them up: 1 + 2 + 3 + 4 + 6 + 8 + 12 + 16 + 24 + 48 = 124. 