202020020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{234907}}^1$

素因数の和:234959

約数の個数: 24

約数和(自身を含む): 434109984

約数和(自身を除く): 232089964

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 234907, 469814, 939628, 1174535, 2349070, 4698140, 10101001, 20202002, 40404004, 50505005, 101010010, 202020020]

約数ペア:

[(1, 202020020), (2, 101010010), (4, 50505005), (5, 40404004), (10, 20202002), (20, 10101001), (43, 4698140), (86, 2349070), (172, 1174535), (215, 939628), (430, 469814), (860, 234907)]