20493060

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{827}}^1$

素因数の和:905

約数の個数: 96

約数和(自身を含む): 66769920

約数和(自身を除く): 46276860

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 59, 60, 70, 84, 105, 118, 140, 177, 210, 236, 295, 354, 413, 420, 590, 708, 826, 827, 885, 1180, 1239, 1652, 1654, 1770, 2065, 2478, 2481, 3308, 3540, 4130, 4135, 4956, 4962, 5789, 6195, 8260, 8270, 9924, 11578, 12390, 12405, 16540, 17367, 23156, 24780, 24810, 28945, 34734, 48793, 49620, 57890, 69468, 86835, 97586, 115780, 146379, 173670, 195172, 243965, 292758, 341551, 347340, 487930, 585516, 683102, 731895, 975860, 1024653, 1366204, 1463790, 1707755, 2049306, 2927580, 3415510, 4098612, 5123265, 6831020, 10246530, 20493060]

約数ペア:

[(1, 20493060), (2, 10246530), (3, 6831020), (4, 5123265), (5, 4098612), (6, 3415510), (7, 2927580), (10, 2049306), (12, 1707755), (14, 1463790), (15, 1366204), (20, 1024653), (21, 975860), (28, 731895), (30, 683102), (35, 585516), (42, 487930), (59, 347340), (60, 341551), (70, 292758), (84, 243965), (105, 195172), (118, 173670), (140, 146379), (177, 115780), (210, 97586), (236, 86835), (295, 69468), (354, 57890), (413, 49620), (420, 48793), (590, 34734), (708, 28945), (826, 24810), (827, 24780), (885, 23156), (1180, 17367), (1239, 16540), (1652, 12405), (1654, 12390), (1770, 11578), (2065, 9924), (2478, 8270), (2481, 8260), (3308, 6195), (3540, 5789), (4130, 4962), (4135, 4956)]