20128490100

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{479}}^1\times {\mathrm{46691}}^1$

素因数の和:47190

約数の個数: 108

約数和(自身を含む): 63224703360

約数和(自身を除く): 43096213260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 150, 180, 225, 300, 450, 479, 900, 958, 1437, 1916, 2395, 2874, 4311, 4790, 5748, 7185, 8622, 9580, 11975, 14370, 17244, 21555, 23950, 28740, 35925, 43110, 46691, 47900, 71850, 86220, 93382, 107775, 140073, 143700, 186764, 215550, 233455, 280146, 420219, 431100, 466910, 560292, 700365, 840438, 933820, 1167275, 1400730, 1680876, 2101095, 2334550, 2801460, 3501825, 4202190, 4669100, 7003650, 8404380, 10505475, 14007300, 21010950, 22364989, 42021900, 44729978, 67094967, 89459956, 111824945, 134189934, 201284901, 223649890, 268379868, 335474835, 402569802, 447299780, 559124725, 670949670, 805139604, 1006424505, 1118249450, 1341899340, 1677374175, 2012849010, 2236498900, 3354748350, 4025698020, 5032122525, 6709496700, 10064245050, 20128490100]

約数ペア:

[(1, 20128490100), (2, 10064245050), (3, 6709496700), (4, 5032122525), (5, 4025698020), (6, 3354748350), (9, 2236498900), (10, 2012849010), (12, 1677374175), (15, 1341899340), (18, 1118249450), (20, 1006424505), (25, 805139604), (30, 670949670), (36, 559124725), (45, 447299780), (50, 402569802), (60, 335474835), (75, 268379868), (90, 223649890), (100, 201284901), (150, 134189934), (180, 111824945), (225, 89459956), (300, 67094967), (450, 44729978), (479, 42021900), (900, 22364989), (958, 21010950), (1437, 14007300), (1916, 10505475), (2395, 8404380), (2874, 7003650), (4311, 4669100), (4790, 4202190), (5748, 3501825), (7185, 2801460), (8622, 2334550), (9580, 2101095), (11975, 1680876), (14370, 1400730), (17244, 1167275), (21555, 933820), (23950, 840438), (28740, 700365), (35925, 560292), (43110, 466910), (46691, 431100), (47900, 420219), (71850, 280146), (86220, 233455), (93382, 215550), (107775, 186764), (140073, 143700)]