20606440

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{7057}}^1$

素因数の和:7141

約数の個数: 32

約数和(自身を含む): 47006280

約数和(自身を除く): 26399840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 7057, 14114, 28228, 35285, 56456, 70570, 141140, 282280, 515161, 1030322, 2060644, 2575805, 4121288, 5151610, 10303220, 20606440]

約数ペア:

[(1, 20606440), (2, 10303220), (4, 5151610), (5, 4121288), (8, 2575805), (10, 2060644), (20, 1030322), (40, 515161), (73, 282280), (146, 141140), (292, 70570), (365, 56456), (584, 35285), (730, 28228), (1460, 14114), (2920, 7057)]