67878220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109481}}^1$

素因数の和:109521

約数の個数: 24

約数和(自身を含む): 147143808

約数和(自身を除く): 79265588

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 109481, 218962, 437924, 547405, 1094810, 2189620, 3393911, 6787822, 13575644, 16969555, 33939110, 67878220]

約数ペア:

[(1, 67878220), (2, 33939110), (4, 16969555), (5, 13575644), (10, 6787822), (20, 3393911), (31, 2189620), (62, 1094810), (124, 547405), (155, 437924), (310, 218962), (620, 109481)]