2020590920

素因数分解:

$2^3\times 5^1\times {\mathrm{4591}}^1\times {\mathrm{11003}}^1$

素因数の和:15605

約数の個数: 32

約数和(自身を含む): 4547733120

約数和(自身を除く): 2527142200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4591, 9182, 11003, 18364, 22006, 22955, 36728, 44012, 45910, 55015, 88024, 91820, 110030, 183640, 220060, 440120, 50514773, 101029546, 202059092, 252573865, 404118184, 505147730, 1010295460, 2020590920]

約数ペア:

[(1, 2020590920), (2, 1010295460), (4, 505147730), (5, 404118184), (8, 252573865), (10, 202059092), (20, 101029546), (40, 50514773), (4591, 440120), (9182, 220060), (11003, 183640), (18364, 110030), (22006, 91820), (22955, 88024), (36728, 55015), (44012, 45910)]