20520804

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{39769}}^1$

素因数の和:39819

約数の個数: 24

約数和(自身を含む): 48996640

約数和(自身を除く): 28475836

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 39769, 79538, 119307, 159076, 238614, 477228, 1710067, 3420134, 5130201, 6840268, 10260402, 20520804]

約数ペア:

[(1, 20520804), (2, 10260402), (3, 6840268), (4, 5130201), (6, 3420134), (12, 1710067), (43, 477228), (86, 238614), (129, 159076), (172, 119307), (258, 79538), (516, 39769)]