2018163640

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{710621}}^1$

素因数の和:710703

約数の個数: 32

約数和(自身を含む): 4604830560

約数和(自身を除く): 2586666920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 710621, 1421242, 2842484, 3553105, 5684968, 7106210, 14212420, 28424840, 50454091, 100908182, 201816364, 252270455, 403632728, 504540910, 1009081820, 2018163640]

約数ペア:

[(1, 2018163640), (2, 1009081820), (4, 504540910), (5, 403632728), (8, 252270455), (10, 201816364), (20, 100908182), (40, 50454091), (71, 28424840), (142, 14212420), (284, 7106210), (355, 5684968), (568, 3553105), (710, 2842484), (1420, 1421242), (2840, 710621)]