Q: What is the sum of all factors of the number 1,401,640 including 1,401,640?
A: 3,206,880
The factors of the number 1,401,640 are: 1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 523, 536, 670, 1046, 1340, 2092, 2615, 2680, 4184, 5230, 10460, 20920, 35041, 70082, 140164, 175205, 280328, 350410, 700820, 1401640.
If you add them up, you will get the total of 3,206,880.