20923220

素因数分解:

$2^2\times 5^1\times {\mathrm{643}}^1\times {\mathrm{1627}}^1$

素因数の和:2279

約数の個数: 24

約数和(自身を含む): 44034144

約数和(自身を除く): 23110924

約数列:

[1, 2, 4, 5, 10, 20, 643, 1286, 1627, 2572, 3215, 3254, 6430, 6508, 8135, 12860, 16270, 32540, 1046161, 2092322, 4184644, 5230805, 10461610, 20923220]

約数ペア:

[(1, 20923220), (2, 10461610), (4, 5230805), (5, 4184644), (10, 2092322), (20, 1046161), (643, 32540), (1286, 16270), (1627, 12860), (2572, 8135), (3215, 6508), (3254, 6430)]