399540124

素因数分解:

$2^2\times {\mathrm{181}}^1\times {\mathrm{239}}^1\times {\mathrm{2309}}^1$

素因数の和:2733

約数の個数: 24

約数和(自身を含む): 706305600

約数和(自身を除く): 306765476

約数列:

[1, 2, 4, 181, 239, 362, 478, 724, 956, 2309, 4618, 9236, 43259, 86518, 173036, 417929, 551851, 835858, 1103702, 1671716, 2207404, 99885031, 199770062, 399540124]

約数ペア:

[(1, 399540124), (2, 199770062), (4, 99885031), (181, 2207404), (239, 1671716), (362, 1103702), (478, 835858), (724, 551851), (956, 417929), (2309, 173036), (4618, 86518), (9236, 43259)]