81319740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1355329}}^1$

素因数の和:1355341

約数の個数: 24

約数和(自身を含む): 227695440

約数和(自身を除く): 146375700

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1355329, 2710658, 4065987, 5421316, 6776645, 8131974, 13553290, 16263948, 20329935, 27106580, 40659870, 81319740]

約数ペア:

[(1, 81319740), (2, 40659870), (3, 27106580), (4, 20329935), (5, 16263948), (6, 13553290), (10, 8131974), (12, 6776645), (15, 5421316), (20, 4065987), (30, 2710658), (60, 1355329)]