81613140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{4519}}^1$

素因数の和:4581

約数の個数: 96

約数和(自身を含む): 267294720

約数和(自身を除く): 185681580

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 43, 60, 70, 84, 86, 105, 129, 140, 172, 210, 215, 258, 301, 420, 430, 516, 602, 645, 860, 903, 1204, 1290, 1505, 1806, 2580, 3010, 3612, 4515, 4519, 6020, 9030, 9038, 13557, 18060, 18076, 22595, 27114, 31633, 45190, 54228, 63266, 67785, 90380, 94899, 126532, 135570, 158165, 189798, 194317, 271140, 316330, 379596, 388634, 474495, 582951, 632660, 777268, 948990, 971585, 1165902, 1360219, 1897980, 1943170, 2331804, 2720438, 2914755, 3886340, 4080657, 5440876, 5829510, 6801095, 8161314, 11659020, 13602190, 16322628, 20403285, 27204380, 40806570, 81613140]

約数ペア:

[(1, 81613140), (2, 40806570), (3, 27204380), (4, 20403285), (5, 16322628), (6, 13602190), (7, 11659020), (10, 8161314), (12, 6801095), (14, 5829510), (15, 5440876), (20, 4080657), (21, 3886340), (28, 2914755), (30, 2720438), (35, 2331804), (42, 1943170), (43, 1897980), (60, 1360219), (70, 1165902), (84, 971585), (86, 948990), (105, 777268), (129, 632660), (140, 582951), (172, 474495), (210, 388634), (215, 379596), (258, 316330), (301, 271140), (420, 194317), (430, 189798), (516, 158165), (602, 135570), (645, 126532), (860, 94899), (903, 90380), (1204, 67785), (1290, 63266), (1505, 54228), (1806, 45190), (2580, 31633), (3010, 27114), (3612, 22595), (4515, 18076), (4519, 18060), (6020, 13557), (9030, 9038)]