2019979825

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{17239}}^1$

素因数の和:17401

約数の個数: 24

約数和(自身を含む): 2586689600

約数和(自身を除く): 566709775

約数列:

[1, 5, 25, 43, 109, 215, 545, 1075, 2725, 4687, 17239, 23435, 86195, 117175, 430975, 741277, 1879051, 3706385, 9395255, 18531925, 46976275, 80799193, 403995965, 2019979825]

約数ペア:

[(1, 2019979825), (5, 403995965), (25, 80799193), (43, 46976275), (109, 18531925), (215, 9395255), (545, 3706385), (1075, 1879051), (2725, 741277), (4687, 430975), (17239, 117175), (23435, 86195)]