2021497820

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{557}}^1\times {\mathrm{2297}}^1$

素因数の和:2942

約数の個数: 48

約数和(自身を含む): 4308474240

約数和(自身を除く): 2286976420

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 557, 790, 1114, 1580, 2228, 2297, 2785, 4594, 5570, 9188, 11140, 11485, 22970, 44003, 45940, 88006, 176012, 181463, 220015, 362926, 440030, 725852, 880060, 907315, 1279429, 1814630, 2558858, 3629260, 5117716, 6397145, 12794290, 25588580, 101074891, 202149782, 404299564, 505374455, 1010748910, 2021497820]

約数ペア:

[(1, 2021497820), (2, 1010748910), (4, 505374455), (5, 404299564), (10, 202149782), (20, 101074891), (79, 25588580), (158, 12794290), (316, 6397145), (395, 5117716), (557, 3629260), (790, 2558858), (1114, 1814630), (1580, 1279429), (2228, 907315), (2297, 880060), (2785, 725852), (4594, 440030), (5570, 362926), (9188, 220015), (11140, 181463), (11485, 176012), (22970, 88006), (44003, 45940)]