18639621080

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^3\times {\mathrm{5861}}^1$

素因数の和:6001

約数の個数: 64

約数和(自身を含む): 42945012000

約数和(自身を除く): 24305390920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 1849, 3698, 5861, 7396, 9245, 11722, 14792, 18490, 23444, 29305, 36980, 46888, 58610, 73960, 79507, 117220, 159014, 234440, 252023, 318028, 397535, 504046, 636056, 795070, 1008092, 1260115, 1590140, 2016184, 2520230, 3180280, 5040460, 10080920, 10836989, 21673978, 43347956, 54184945, 86695912, 108369890, 216739780, 433479560, 465990527, 931981054, 1863962108, 2329952635, 3727924216, 4659905270, 9319810540, 18639621080]

約数ペア:

[(1, 18639621080), (2, 9319810540), (4, 4659905270), (5, 3727924216), (8, 2329952635), (10, 1863962108), (20, 931981054), (40, 465990527), (43, 433479560), (86, 216739780), (172, 108369890), (215, 86695912), (344, 54184945), (430, 43347956), (860, 21673978), (1720, 10836989), (1849, 10080920), (3698, 5040460), (5861, 3180280), (7396, 2520230), (9245, 2016184), (11722, 1590140), (14792, 1260115), (18490, 1008092), (23444, 795070), (29305, 636056), (36980, 504046), (46888, 397535), (58610, 318028), (73960, 252023), (79507, 234440), (117220, 159014)]