18442840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1223}}^1$

素因数の和:1276

約数の個数: 64

約数和(自身を含む): 46267200

約数和(自身を除く): 27824360

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 29, 40, 52, 58, 65, 104, 116, 130, 145, 232, 260, 290, 377, 520, 580, 754, 1160, 1223, 1508, 1885, 2446, 3016, 3770, 4892, 6115, 7540, 9784, 12230, 15080, 15899, 24460, 31798, 35467, 48920, 63596, 70934, 79495, 127192, 141868, 158990, 177335, 283736, 317980, 354670, 461071, 635960, 709340, 922142, 1418680, 1844284, 2305355, 3688568, 4610710, 9221420, 18442840]

約数ペア:

[(1, 18442840), (2, 9221420), (4, 4610710), (5, 3688568), (8, 2305355), (10, 1844284), (13, 1418680), (20, 922142), (26, 709340), (29, 635960), (40, 461071), (52, 354670), (58, 317980), (65, 283736), (104, 177335), (116, 158990), (130, 141868), (145, 127192), (232, 79495), (260, 70934), (290, 63596), (377, 48920), (520, 35467), (580, 31798), (754, 24460), (1160, 15899), (1223, 15080), (1508, 12230), (1885, 9784), (2446, 7540), (3016, 6115), (3770, 4892)]