2018974420

素因数分解:

$2^2\times 5^1\times {\mathrm{100948721}}^1$

素因数の和:100948730

約数の個数: 12

約数和(自身を含む): 4239846324

約数和(自身を除く): 2220871904

約数列:

[1, 2, 4, 5, 10, 20, 100948721, 201897442, 403794884, 504743605, 1009487210, 2018974420]

約数ペア:

[(1, 2018974420), (2, 1009487210), (4, 504743605), (5, 403794884), (10, 201897442), (20, 100948721)]