30831740

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{14143}}^1$

素因数の和:14261

約数の個数: 24

約数和(自身を含む): 65345280

約数和(自身を除く): 34513540

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 14143, 28286, 56572, 70715, 141430, 282860, 1541587, 3083174, 6166348, 7707935, 15415870, 30831740]

約数ペア:

[(1, 30831740), (2, 15415870), (4, 7707935), (5, 6166348), (10, 3083174), (20, 1541587), (109, 282860), (218, 141430), (436, 70715), (545, 56572), (1090, 28286), (2180, 14143)]