20339860

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{353}}^1$

素因数の和:472

約数の個数: 48

約数和(自身を含む): 44485056

約数和(自身を除く): 24145196

約数列:

[1, 2, 4, 5, 10, 20, 43, 67, 86, 134, 172, 215, 268, 335, 353, 430, 670, 706, 860, 1340, 1412, 1765, 2881, 3530, 5762, 7060, 11524, 14405, 15179, 23651, 28810, 30358, 47302, 57620, 60716, 75895, 94604, 118255, 151790, 236510, 303580, 473020, 1016993, 2033986, 4067972, 5084965, 10169930, 20339860]

約数ペア:

[(1, 20339860), (2, 10169930), (4, 5084965), (5, 4067972), (10, 2033986), (20, 1016993), (43, 473020), (67, 303580), (86, 236510), (134, 151790), (172, 118255), (215, 94604), (268, 75895), (335, 60716), (353, 57620), (430, 47302), (670, 30358), (706, 28810), (860, 23651), (1340, 15179), (1412, 14405), (1765, 11524), (2881, 7060), (3530, 5762)]