2021094520

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{711653}}^1$

素因数の和:711735

約数の個数: 32

約数和(自身を含む): 4611517920

約数和(自身を除く): 2590423400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 711653, 1423306, 2846612, 3558265, 5693224, 7116530, 14233060, 28466120, 50527363, 101054726, 202109452, 252636815, 404218904, 505273630, 1010547260, 2021094520]

約数ペア:

[(1, 2021094520), (2, 1010547260), (4, 505273630), (5, 404218904), (8, 252636815), (10, 202109452), (20, 101054726), (40, 50527363), (71, 28466120), (142, 14233060), (284, 7116530), (355, 5693224), (568, 3558265), (710, 2846612), (1420, 1423306), (2840, 711653)]