81726660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{10559}}^1$

素因数の和:10617

約数の個数: 72

約数和(自身を含む): 253693440

約数和(自身を除く): 171966780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3870, 7740, 10559, 21118, 31677, 42236, 52795, 63354, 95031, 105590, 126708, 158385, 190062, 211180, 316770, 380124, 454037, 475155, 633540, 908074, 950310, 1362111, 1816148, 1900620, 2270185, 2724222, 4086333, 4540370, 5448444, 6810555, 8172666, 9080740, 13621110, 16345332, 20431665, 27242220, 40863330, 81726660]

約数ペア:

[(1, 81726660), (2, 40863330), (3, 27242220), (4, 20431665), (5, 16345332), (6, 13621110), (9, 9080740), (10, 8172666), (12, 6810555), (15, 5448444), (18, 4540370), (20, 4086333), (30, 2724222), (36, 2270185), (43, 1900620), (45, 1816148), (60, 1362111), (86, 950310), (90, 908074), (129, 633540), (172, 475155), (180, 454037), (215, 380124), (258, 316770), (387, 211180), (430, 190062), (516, 158385), (645, 126708), (774, 105590), (860, 95031), (1290, 63354), (1548, 52795), (1935, 42236), (2580, 31677), (3870, 21118), (7740, 10559)]