20018786976

素因数分解:

$2^5\times 3^2\times {\mathrm{197}}^1\times {\mathrm{352841}}^1$

素因数の和:353054

約数の個数: 72

約数和(自身を含む): 57217564404

約数和(自身を除く): 37198777428

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 197, 288, 394, 591, 788, 1182, 1576, 1773, 2364, 3152, 3546, 4728, 6304, 7092, 9456, 14184, 18912, 28368, 56736, 352841, 705682, 1058523, 1411364, 2117046, 2822728, 3175569, 4234092, 5645456, 6351138, 8468184, 11290912, 12702276, 16936368, 25404552, 33872736, 50809104, 69509677, 101618208, 139019354, 208529031, 278038708, 417058062, 556077416, 625587093, 834116124, 1112154832, 1251174186, 1668232248, 2224309664, 2502348372, 3336464496, 5004696744, 6672928992, 10009393488, 20018786976]

約数ペア:

[(1, 20018786976), (2, 10009393488), (3, 6672928992), (4, 5004696744), (6, 3336464496), (8, 2502348372), (9, 2224309664), (12, 1668232248), (16, 1251174186), (18, 1112154832), (24, 834116124), (32, 625587093), (36, 556077416), (48, 417058062), (72, 278038708), (96, 208529031), (144, 139019354), (197, 101618208), (288, 69509677), (394, 50809104), (591, 33872736), (788, 25404552), (1182, 16936368), (1576, 12702276), (1773, 11290912), (2364, 8468184), (3152, 6351138), (3546, 5645456), (4728, 4234092), (6304, 3175569), (7092, 2822728), (9456, 2117046), (14184, 1411364), (18912, 1058523), (28368, 705682), (56736, 352841)]