Q: What is the sum of all factors of the number 640,546,040 including 640,546,040?

A: 1,455,507,360

Why is 1,455,507,360 the sum of all factors of 640,546,040, including 640,546,040?

The factors of the number 640,546,040 are: 1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 158551, 317102, 634204, 792755, 1268408, 1585510, 3171020, 6342040, 16013651, 32027302, 64054604, 80068255, 128109208, 160136510, 320273020, 640546040.

If you add them up, you will get the total of 1,455,507,360.