209191920

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{521}}^1$

素因数の和:783

約数の個数: 160

約数和(自身を含む): 745666560

約数和(自身を除く): 536474640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 239, 240, 280, 336, 420, 478, 521, 560, 717, 840, 956, 1042, 1195, 1434, 1563, 1673, 1680, 1912, 2084, 2390, 2605, 2868, 3126, 3346, 3585, 3647, 3824, 4168, 4780, 5019, 5210, 5736, 6252, 6692, 7170, 7294, 7815, 8336, 8365, 9560, 10038, 10420, 10941, 11472, 12504, 13384, 14340, 14588, 15630, 16730, 18235, 19120, 20076, 20840, 21882, 25008, 25095, 26768, 28680, 29176, 31260, 33460, 36470, 40152, 41680, 43764, 50190, 54705, 57360, 58352, 62520, 66920, 72940, 80304, 87528, 100380, 109410, 124519, 125040, 133840, 145880, 175056, 200760, 218820, 249038, 291760, 373557, 401520, 437640, 498076, 622595, 747114, 871633, 875280, 996152, 1245190, 1494228, 1743266, 1867785, 1992304, 2490380, 2614899, 2988456, 3486532, 3735570, 4358165, 4980760, 5229798, 5976912, 6973064, 7471140, 8716330, 9961520, 10459596, 13074495, 13946128, 14942280, 17432660, 20919192, 26148990, 29884560, 34865320, 41838384, 52297980, 69730640, 104595960, 209191920]

約数ペア:

[(1, 209191920), (2, 104595960), (3, 69730640), (4, 52297980), (5, 41838384), (6, 34865320), (7, 29884560), (8, 26148990), (10, 20919192), (12, 17432660), (14, 14942280), (15, 13946128), (16, 13074495), (20, 10459596), (21, 9961520), (24, 8716330), (28, 7471140), (30, 6973064), (35, 5976912), (40, 5229798), (42, 4980760), (48, 4358165), (56, 3735570), (60, 3486532), (70, 2988456), (80, 2614899), (84, 2490380), (105, 1992304), (112, 1867785), (120, 1743266), (140, 1494228), (168, 1245190), (210, 996152), (239, 875280), (240, 871633), (280, 747114), (336, 622595), (420, 498076), (478, 437640), (521, 401520), (560, 373557), (717, 291760), (840, 249038), (956, 218820), (1042, 200760), (1195, 175056), (1434, 145880), (1563, 133840), (1673, 125040), (1680, 124519), (1912, 109410), (2084, 100380), (2390, 87528), (2605, 80304), (2868, 72940), (3126, 66920), (3346, 62520), (3585, 58352), (3647, 57360), (3824, 54705), (4168, 50190), (4780, 43764), (5019, 41680), (5210, 40152), (5736, 36470), (6252, 33460), (6692, 31260), (7170, 29176), (7294, 28680), (7815, 26768), (8336, 25095), (8365, 25008), (9560, 21882), (10038, 20840), (10420, 20076), (10941, 19120), (11472, 18235), (12504, 16730), (13384, 15630), (14340, 14588)]