408048020

素因数分解:

$2^2\times 5^1\times {\mathrm{571}}^1\times {\mathrm{35731}}^1$

素因数の和:36311

約数の個数: 24

約数和(自身を含む): 858425568

約数和(自身を除く): 450377548

約数列:

[1, 2, 4, 5, 10, 20, 571, 1142, 2284, 2855, 5710, 11420, 35731, 71462, 142924, 178655, 357310, 714620, 20402401, 40804802, 81609604, 102012005, 204024010, 408048020]

約数ペア:

[(1, 408048020), (2, 204024010), (4, 102012005), (5, 81609604), (10, 40804802), (20, 20402401), (571, 714620), (1142, 357310), (2284, 178655), (2855, 142924), (5710, 71462), (11420, 35731)]