20018220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{7759}}^1$

素因数の和:7814

約数の個数: 48

約数和(自身を含む): 57361920

約数和(自身を除く): 37343700

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 516, 645, 860, 1290, 2580, 7759, 15518, 23277, 31036, 38795, 46554, 77590, 93108, 116385, 155180, 232770, 333637, 465540, 667274, 1000911, 1334548, 1668185, 2001822, 3336370, 4003644, 5004555, 6672740, 10009110, 20018220]

約数ペア:

[(1, 20018220), (2, 10009110), (3, 6672740), (4, 5004555), (5, 4003644), (6, 3336370), (10, 2001822), (12, 1668185), (15, 1334548), (20, 1000911), (30, 667274), (43, 465540), (60, 333637), (86, 232770), (129, 155180), (172, 116385), (215, 93108), (258, 77590), (430, 46554), (516, 38795), (645, 31036), (860, 23277), (1290, 15518), (2580, 7759)]