20138025620

素因数分解:

$2^2\times 5^1\times {\mathrm{313}}^1\times {\mathrm{3216937}}^1$

素因数の和:3217259

約数の個数: 24

約数和(自身を含む): 42424978344

約数和(自身を除く): 22286952724

約数列:

[1, 2, 4, 5, 10, 20, 313, 626, 1252, 1565, 3130, 6260, 3216937, 6433874, 12867748, 16084685, 32169370, 64338740, 1006901281, 2013802562, 4027605124, 5034506405, 10069012810, 20138025620]

約数ペア:

[(1, 20138025620), (2, 10069012810), (4, 5034506405), (5, 4027605124), (10, 2013802562), (20, 1006901281), (313, 64338740), (626, 32169370), (1252, 16084685), (1565, 12867748), (3130, 6433874), (6260, 3216937)]