18087020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{129193}}^1$

素因数の和:129209

約数の個数: 24

約数和(自身を含む): 43409184

約数和(自身を除く): 25322164

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 129193, 258386, 516772, 645965, 904351, 1291930, 1808702, 2583860, 3617404, 4521755, 9043510, 18087020]

約数ペア:

[(1, 18087020), (2, 9043510), (4, 4521755), (5, 3617404), (7, 2583860), (10, 1808702), (14, 1291930), (20, 904351), (28, 645965), (35, 516772), (70, 258386), (140, 129193)]