18158020

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{12437}}^1$

素因数の和:12519

約数の個数: 24

約数和(自身を含む): 38657304

約数和(自身を除く): 20499284

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 12437, 24874, 49748, 62185, 124370, 248740, 907901, 1815802, 3631604, 4539505, 9079010, 18158020]

約数ペア:

[(1, 18158020), (2, 9079010), (4, 4539505), (5, 3631604), (10, 1815802), (20, 907901), (73, 248740), (146, 124370), (292, 62185), (365, 49748), (730, 24874), (1460, 12437)]