218628260

素因数分解:

$2^2\times 5^1\times {\mathrm{1109}}^1\times {\mathrm{9857}}^1$

素因数の和:10975

約数の個数: 24

約数和(自身を含む): 459579960

約数和(自身を除く): 240951700

約数列:

[1, 2, 4, 5, 10, 20, 1109, 2218, 4436, 5545, 9857, 11090, 19714, 22180, 39428, 49285, 98570, 197140, 10931413, 21862826, 43725652, 54657065, 109314130, 218628260]

約数ペア:

[(1, 218628260), (2, 109314130), (4, 54657065), (5, 43725652), (10, 21862826), (20, 10931413), (1109, 197140), (2218, 98570), (4436, 49285), (5545, 39428), (9857, 22180), (11090, 19714)]