18883004080

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{54727}}^1$

素因数の和:54986

約数の個数: 80

約数和(自身を含む): 46418100480

約数和(自身を除く): 27535096400

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 227, 304, 380, 454, 760, 908, 1135, 1520, 1816, 2270, 3632, 4313, 4540, 8626, 9080, 17252, 18160, 21565, 34504, 43130, 54727, 69008, 86260, 109454, 172520, 218908, 273635, 345040, 437816, 547270, 875632, 1039813, 1094540, 2079626, 2189080, 4159252, 4378160, 5199065, 8318504, 10398130, 12423029, 16637008, 20796260, 24846058, 41592520, 49692116, 62115145, 83185040, 99384232, 124230290, 198768464, 236037551, 248460580, 472075102, 496921160, 944150204, 993842320, 1180187755, 1888300408, 2360375510, 3776600816, 4720751020, 9441502040, 18883004080]

約数ペア:

[(1, 18883004080), (2, 9441502040), (4, 4720751020), (5, 3776600816), (8, 2360375510), (10, 1888300408), (16, 1180187755), (19, 993842320), (20, 944150204), (38, 496921160), (40, 472075102), (76, 248460580), (80, 236037551), (95, 198768464), (152, 124230290), (190, 99384232), (227, 83185040), (304, 62115145), (380, 49692116), (454, 41592520), (760, 24846058), (908, 20796260), (1135, 16637008), (1520, 12423029), (1816, 10398130), (2270, 8318504), (3632, 5199065), (4313, 4378160), (4540, 4159252), (8626, 2189080), (9080, 2079626), (17252, 1094540), (18160, 1039813), (21565, 875632), (34504, 547270), (43130, 437816), (54727, 345040), (69008, 273635), (86260, 218908), (109454, 172520)]