213432820

素因数分解:

$2^2\times 5^1\times {\mathrm{479}}^1\times {\mathrm{22279}}^1$

素因数の和:22767

約数の個数: 24

約数和(自身を含む): 449164800

約数和(自身を除く): 235731980

約数列:

[1, 2, 4, 5, 10, 20, 479, 958, 1916, 2395, 4790, 9580, 22279, 44558, 89116, 111395, 222790, 445580, 10671641, 21343282, 42686564, 53358205, 106716410, 213432820]

約数ペア:

[(1, 213432820), (2, 106716410), (4, 53358205), (5, 42686564), (10, 21343282), (20, 10671641), (479, 445580), (958, 222790), (1916, 111395), (2395, 89116), (4790, 44558), (9580, 22279)]