18720530

素因数分解:

$2^1\times 5^1\times {\mathrm{313}}^1\times {\mathrm{5981}}^1$

素因数の和:6301

約数の個数: 16

約数和(自身を含む): 33810264

約数和(自身を除く): 15089734

約数列:

[1, 2, 5, 10, 313, 626, 1565, 3130, 5981, 11962, 29905, 59810, 1872053, 3744106, 9360265, 18720530]

約数ペア:

[(1, 18720530), (2, 9360265), (5, 3744106), (10, 1872053), (313, 59810), (626, 29905), (1565, 11962), (3130, 5981)]