20172556740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{659}}^1\times {\mathrm{72883}}^1$

素因数の和:73561

約数の個数: 96

約数和(自身を含む): 64651023360

約数和(自身を除く): 44478466620

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 659, 1318, 1977, 2636, 3295, 3954, 4613, 6590, 7908, 9226, 9885, 13180, 13839, 18452, 19770, 23065, 27678, 39540, 46130, 55356, 69195, 72883, 92260, 138390, 145766, 218649, 276780, 291532, 364415, 437298, 510181, 728830, 874596, 1020362, 1093245, 1457660, 1530543, 2040724, 2186490, 2550905, 3061086, 4372980, 5101810, 6122172, 7652715, 10203620, 15305430, 30610860, 48029897, 96059794, 144089691, 192119588, 240149485, 288179382, 336209279, 480298970, 576358764, 672418558, 720448455, 960597940, 1008627837, 1344837116, 1440896910, 1681046395, 2017255674, 2881793820, 3362092790, 4034511348, 5043139185, 6724185580, 10086278370, 20172556740]

約数ペア:

[(1, 20172556740), (2, 10086278370), (3, 6724185580), (4, 5043139185), (5, 4034511348), (6, 3362092790), (7, 2881793820), (10, 2017255674), (12, 1681046395), (14, 1440896910), (15, 1344837116), (20, 1008627837), (21, 960597940), (28, 720448455), (30, 672418558), (35, 576358764), (42, 480298970), (60, 336209279), (70, 288179382), (84, 240149485), (105, 192119588), (140, 144089691), (210, 96059794), (420, 48029897), (659, 30610860), (1318, 15305430), (1977, 10203620), (2636, 7652715), (3295, 6122172), (3954, 5101810), (4613, 4372980), (6590, 3061086), (7908, 2550905), (9226, 2186490), (9885, 2040724), (13180, 1530543), (13839, 1457660), (18452, 1093245), (19770, 1020362), (23065, 874596), (27678, 728830), (39540, 510181), (46130, 437298), (55356, 364415), (69195, 291532), (72883, 276780), (92260, 218649), (138390, 145766)]