641226020

素因数分解:

$2^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{103091}}^1$

素因数の和:103411

約数の個数: 24

約数和(自身を含む): 1350917568

約数和(自身を除く): 709691548

約数列:

[1, 2, 4, 5, 10, 20, 311, 622, 1244, 1555, 3110, 6220, 103091, 206182, 412364, 515455, 1030910, 2061820, 32061301, 64122602, 128245204, 160306505, 320613010, 641226020]

約数ペア:

[(1, 641226020), (2, 320613010), (4, 160306505), (5, 128245204), (10, 64122602), (20, 32061301), (311, 2061820), (622, 1030910), (1244, 515455), (1555, 412364), (3110, 206182), (6220, 103091)]