218218160

素因数分解:

$2^4\times 5^1\times {\mathrm{2727727}}^1$

素因数の和:2727740

約数の個数: 20

約数和(自身を含む): 507357408

約数和(自身を除く): 289139248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2727727, 5455454, 10910908, 13638635, 21821816, 27277270, 43643632, 54554540, 109109080, 218218160]

約数ペア:

[(1, 218218160), (2, 109109080), (4, 54554540), (5, 43643632), (8, 27277270), (10, 21821816), (16, 13638635), (20, 10910908), (40, 5455454), (80, 2727727)]