8221520

素因数分解:

$2^4\times 5^1\times {\mathrm{102769}}^1$

素因数の和:102782

約数の個数: 20

約数和(自身を含む): 19115220

約数和(自身を除く): 10893700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 102769, 205538, 411076, 513845, 822152, 1027690, 1644304, 2055380, 4110760, 8221520]

約数ペア:

[(1, 8221520), (2, 4110760), (4, 2055380), (5, 1644304), (8, 1027690), (10, 822152), (16, 513845), (20, 411076), (40, 205538), (80, 102769)]