18273220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{130523}}^1$

素因数の和:130539

約数の個数: 24

約数和(自身を含む): 43856064

約数和(自身を除く): 25582844

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 130523, 261046, 522092, 652615, 913661, 1305230, 1827322, 2610460, 3654644, 4568305, 9136610, 18273220]

約数ペア:

[(1, 18273220), (2, 9136610), (4, 4568305), (5, 3654644), (7, 2610460), (10, 1827322), (14, 1305230), (20, 913661), (28, 652615), (35, 522092), (70, 261046), (140, 130523)]