81660870

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{21101}}^1$

素因数の和:21157

約数の個数: 48

約数和(自身を含む): 217266192

約数和(自身を除く): 135605322

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 43, 45, 86, 90, 129, 215, 258, 387, 430, 645, 774, 1290, 1935, 3870, 21101, 42202, 63303, 105505, 126606, 189909, 211010, 316515, 379818, 633030, 907343, 949545, 1814686, 1899090, 2722029, 4536715, 5444058, 8166087, 9073430, 13610145, 16332174, 27220290, 40830435, 81660870]

約数ペア:

[(1, 81660870), (2, 40830435), (3, 27220290), (5, 16332174), (6, 13610145), (9, 9073430), (10, 8166087), (15, 5444058), (18, 4536715), (30, 2722029), (43, 1899090), (45, 1814686), (86, 949545), (90, 907343), (129, 633030), (215, 379818), (258, 316515), (387, 211010), (430, 189909), (645, 126606), (774, 105505), (1290, 63303), (1935, 42202), (3870, 21101)]