20110020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47881}}^1$

素因数の和:47900

約数の個数: 48

約数和(自身を含む): 64353408

約数和(自身を除く): 44243388

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, 47881, 95762, 143643, 191524, 239405, 287286, 335167, 478810, 574572, 670334, 718215, 957620, 1005501, 1340668, 1436430, 1675835, 2011002, 2872860, 3351670, 4022004, 5027505, 6703340, 10055010, 20110020]

約数ペア:

[(1, 20110020), (2, 10055010), (3, 6703340), (4, 5027505), (5, 4022004), (6, 3351670), (7, 2872860), (10, 2011002), (12, 1675835), (14, 1436430), (15, 1340668), (20, 1005501), (21, 957620), (28, 718215), (30, 670334), (35, 574572), (42, 478810), (60, 335167), (70, 287286), (84, 239405), (105, 191524), (140, 143643), (210, 95762), (420, 47881)]