Q: What is the sum of all factors of the number 1,239,580 including 1,239,580?

Why is 2,603,160 the sum of all factors of 1,239,580, including 1,239,580?

The factors of the number 1,239,580 are: 1, 2, 4, 5, 10, 20, 61979, 123958, 247916, 309895, 619790, 1239580.

If you add them up, you will get the total of 2,603,160.

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