20017558746

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^2\times {\mathrm{139}}^1\times {\mathrm{4327}}^1$

素因数の和:4560

約数の個数: 72

約数和(自身を含む): 44733255840

約数和(自身を除く): 24715697094

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 139, 258, 278, 387, 417, 774, 834, 1251, 1849, 2502, 3698, 4327, 5547, 5977, 8654, 11094, 11954, 12981, 16641, 17931, 25962, 33282, 35862, 38943, 53793, 77886, 107586, 186061, 257011, 372122, 514022, 558183, 601453, 771033, 1116366, 1202906, 1542066, 1674549, 1804359, 2313099, 3349098, 3608718, 4626198, 5413077, 8000623, 10826154, 16001246, 24001869, 25862479, 48003738, 51724958, 72005607, 77587437, 144011214, 155174874, 232762311, 465524622, 1112086597, 2224173194, 3336259791, 6672519582, 10008779373, 20017558746]

約数ペア:

[(1, 20017558746), (2, 10008779373), (3, 6672519582), (6, 3336259791), (9, 2224173194), (18, 1112086597), (43, 465524622), (86, 232762311), (129, 155174874), (139, 144011214), (258, 77587437), (278, 72005607), (387, 51724958), (417, 48003738), (774, 25862479), (834, 24001869), (1251, 16001246), (1849, 10826154), (2502, 8000623), (3698, 5413077), (4327, 4626198), (5547, 3608718), (5977, 3349098), (8654, 2313099), (11094, 1804359), (11954, 1674549), (12981, 1542066), (16641, 1202906), (17931, 1116366), (25962, 771033), (33282, 601453), (35862, 558183), (38943, 514022), (53793, 372122), (77886, 257011), (107586, 186061)]