18279860

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31517}}^1$

素因数の和:31555

約数の個数: 24

約数和(自身を含む): 39712680

約数和(自身を除く): 21432820

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 31517, 63034, 126068, 157585, 315170, 630340, 913993, 1827986, 3655972, 4569965, 9139930, 18279860]

約数ペア:

[(1, 18279860), (2, 9139930), (4, 4569965), (5, 3655972), (10, 1827986), (20, 913993), (29, 630340), (58, 315170), (116, 157585), (145, 126068), (290, 63034), (580, 31517)]