20958020

素因数分解:

$2^2\times 5^1\times {\mathrm{457}}^1\times {\mathrm{2293}}^1$

素因数の和:2759

約数の個数: 24

約数和(自身を含む): 44127384

約数和(自身を除く): 23169364

約数列:

[1, 2, 4, 5, 10, 20, 457, 914, 1828, 2285, 2293, 4570, 4586, 9140, 9172, 11465, 22930, 45860, 1047901, 2095802, 4191604, 5239505, 10479010, 20958020]

約数ペア:

[(1, 20958020), (2, 10479010), (4, 5239505), (5, 4191604), (10, 2095802), (20, 1047901), (457, 45860), (914, 22930), (1828, 11465), (2285, 9172), (2293, 9140), (4570, 4586)]