20201920

素因数分解:

$2^6\times 5^1\times {\mathrm{63131}}^1$

素因数の和:63148

約数の個数: 28

約数和(自身を含む): 48106584

約数和(自身を除く): 27904664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 63131, 126262, 252524, 315655, 505048, 631310, 1010096, 1262620, 2020192, 2525240, 4040384, 5050480, 10100960, 20201920]

約数ペア:

[(1, 20201920), (2, 10100960), (4, 5050480), (5, 4040384), (8, 2525240), (10, 2020192), (16, 1262620), (20, 1010096), (32, 631310), (40, 505048), (64, 315655), (80, 252524), (160, 126262), (320, 63131)]