389634020

素因数分解:

$2^2\times 5^1\times {\mathrm{1021}}^1\times {\mathrm{19081}}^1$

素因数の和:20111

約数の個数: 24

約数和(自身を含む): 819075768

約数和(自身を除く): 429441748

約数列:

[1, 2, 4, 5, 10, 20, 1021, 2042, 4084, 5105, 10210, 19081, 20420, 38162, 76324, 95405, 190810, 381620, 19481701, 38963402, 77926804, 97408505, 194817010, 389634020]

約数ペア:

[(1, 389634020), (2, 194817010), (4, 97408505), (5, 77926804), (10, 38963402), (20, 19481701), (1021, 381620), (2042, 190810), (4084, 95405), (5105, 76324), (10210, 38162), (19081, 20420)]