20181060828

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{1949}}^1\times {\mathrm{6689}}^1$

素因数の和:8691

約数の個数: 72

約数和(自身を含む): 52234182000

約数和(自身を除く): 32053121172

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 172, 258, 387, 516, 774, 1548, 1949, 3898, 5847, 6689, 7796, 11694, 13378, 17541, 20067, 23388, 26756, 35082, 40134, 60201, 70164, 80268, 83807, 120402, 167614, 240804, 251421, 287627, 335228, 502842, 575254, 754263, 862881, 1005684, 1150508, 1508526, 1725762, 2588643, 3017052, 3451524, 5177286, 10354572, 13036861, 26073722, 39110583, 52147444, 78221166, 117331749, 156442332, 234663498, 469326996, 560585023, 1121170046, 1681755069, 2242340092, 3363510138, 5045265207, 6727020276, 10090530414, 20181060828]

約数ペア:

[(1, 20181060828), (2, 10090530414), (3, 6727020276), (4, 5045265207), (6, 3363510138), (9, 2242340092), (12, 1681755069), (18, 1121170046), (36, 560585023), (43, 469326996), (86, 234663498), (129, 156442332), (172, 117331749), (258, 78221166), (387, 52147444), (516, 39110583), (774, 26073722), (1548, 13036861), (1949, 10354572), (3898, 5177286), (5847, 3451524), (6689, 3017052), (7796, 2588643), (11694, 1725762), (13378, 1508526), (17541, 1150508), (20067, 1005684), (23388, 862881), (26756, 754263), (35082, 575254), (40134, 502842), (60201, 335228), (70164, 287627), (80268, 251421), (83807, 240804), (120402, 167614)]