205277940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{827}}^1$

素因数の和:1046

約数の個数: 144

約数和(自身を含む): 716107392

約数和(自身を除く): 510829452

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 197, 210, 252, 315, 394, 420, 591, 630, 788, 827, 985, 1182, 1260, 1379, 1654, 1773, 1970, 2364, 2481, 2758, 2955, 3308, 3546, 3940, 4135, 4137, 4962, 5516, 5789, 5910, 6895, 7092, 7443, 8270, 8274, 8865, 9924, 11578, 11820, 12405, 12411, 13790, 14886, 16540, 16548, 17367, 17730, 20685, 23156, 24810, 24822, 27580, 28945, 29772, 34734, 35460, 37215, 41370, 49620, 49644, 52101, 57890, 62055, 69468, 74430, 82740, 86835, 104202, 115780, 124110, 148860, 162919, 173670, 208404, 248220, 260505, 325838, 347340, 488757, 521010, 651676, 814595, 977514, 1042020, 1140433, 1466271, 1629190, 1955028, 2280866, 2443785, 2932542, 3258380, 3421299, 4561732, 4887570, 5702165, 5865084, 6842598, 7331355, 9775140, 10263897, 11404330, 13685196, 14662710, 17106495, 20527794, 22808660, 29325420, 34212990, 41055588, 51319485, 68425980, 102638970, 205277940]

約数ペア:

[(1, 205277940), (2, 102638970), (3, 68425980), (4, 51319485), (5, 41055588), (6, 34212990), (7, 29325420), (9, 22808660), (10, 20527794), (12, 17106495), (14, 14662710), (15, 13685196), (18, 11404330), (20, 10263897), (21, 9775140), (28, 7331355), (30, 6842598), (35, 5865084), (36, 5702165), (42, 4887570), (45, 4561732), (60, 3421299), (63, 3258380), (70, 2932542), (84, 2443785), (90, 2280866), (105, 1955028), (126, 1629190), (140, 1466271), (180, 1140433), (197, 1042020), (210, 977514), (252, 814595), (315, 651676), (394, 521010), (420, 488757), (591, 347340), (630, 325838), (788, 260505), (827, 248220), (985, 208404), (1182, 173670), (1260, 162919), (1379, 148860), (1654, 124110), (1773, 115780), (1970, 104202), (2364, 86835), (2481, 82740), (2758, 74430), (2955, 69468), (3308, 62055), (3546, 57890), (3940, 52101), (4135, 49644), (4137, 49620), (4962, 41370), (5516, 37215), (5789, 35460), (5910, 34734), (6895, 29772), (7092, 28945), (7443, 27580), (8270, 24822), (8274, 24810), (8865, 23156), (9924, 20685), (11578, 17730), (11820, 17367), (12405, 16548), (12411, 16540), (13790, 14886)]