40221520

素因数分解:

$2^4\times 5^1\times {\mathrm{502769}}^1$

素因数の和:502782

約数の個数: 20

約数和(自身を含む): 93515220

約数和(自身を除く): 53293700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 502769, 1005538, 2011076, 2513845, 4022152, 5027690, 8044304, 10055380, 20110760, 40221520]

約数ペア:

[(1, 40221520), (2, 20110760), (4, 10055380), (5, 8044304), (8, 5027690), (10, 4022152), (16, 2513845), (20, 2011076), (40, 1005538), (80, 502769)]