18678020

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{9067}}^1$

素因数の和:9179

約数の個数: 24

約数和(自身を含む): 39609024

約数和(自身を除く): 20931004

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 9067, 18134, 36268, 45335, 90670, 181340, 933901, 1867802, 3735604, 4669505, 9339010, 18678020]

約数ペア:

[(1, 18678020), (2, 9339010), (4, 4669505), (5, 3735604), (10, 1867802), (20, 933901), (103, 181340), (206, 90670), (412, 45335), (515, 36268), (1030, 18134), (2060, 9067)]