Q: What is the sum of all factors of the number 1,286,820 including 1,286,820?

A: 4,005,120

Why is 4,005,120 the sum of all factors of 1,286,820, including 1,286,820?

The factors of the number 1,286,820 are: 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 2383, 4766, 7149, 9532, 11915, 14298, 21447, 23830, 28596, 35745, 42894, 47660, 64341, 71490, 85788, 107235, 128682, 142980, 214470, 257364, 321705, 428940, 643410, 1286820.

If you add them up, you will get the total of 4,005,120.