20580620

素因数分解:

$2^2\times 5^1\times {\mathrm{487}}^1\times {\mathrm{2113}}^1$

素因数の和:2609

約数の個数: 24

約数和(自身を含む): 43328544

約数和(自身を除く): 22747924

約数列:

[1, 2, 4, 5, 10, 20, 487, 974, 1948, 2113, 2435, 4226, 4870, 8452, 9740, 10565, 21130, 42260, 1029031, 2058062, 4116124, 5145155, 10290310, 20580620]

約数ペア:

[(1, 20580620), (2, 10290310), (4, 5145155), (5, 4116124), (10, 2058062), (20, 1029031), (487, 42260), (974, 21130), (1948, 10565), (2113, 9740), (2435, 8452), (4226, 4870)]