Q: What is the sum of all factors of the number 1,405,815 including 1,405,815?

Why is 2,462,400 the sum of all factors of 1,405,815, including 1,405,815?

The factors of the number 1,405,815 are: 1, 3, 5, 15, 17, 37, 51, 85, 111, 149, 185, 255, 447, 555, 629, 745, 1887, 2235, 2533, 3145, 5513, 7599, 9435, 12665, 16539, 27565, 37995, 82695, 93721, 281163, 468605, 1405815.

If you add them up, you will get the total of 2,462,400.

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