Q: What is the sum of all factors of the number 1,561,240 including 1,561,240?
A: 3,667,680
The factors of the number 1,561,240 are: 1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 1697, 3394, 6788, 8485, 13576, 16970, 33940, 39031, 67880, 78062, 156124, 195155, 312248, 390310, 780620, 1561240.
If you add them up, you will get the total of 3,667,680.