81024140

素因数分解:

$2^2\times 5^1\times {\mathrm{1811}}^1\times {\mathrm{2237}}^1$

素因数の和:4057

約数の個数: 24

約数和(自身を含む): 170320752

約数和(自身を除く): 89296612

約数列:

[1, 2, 4, 5, 10, 20, 1811, 2237, 3622, 4474, 7244, 8948, 9055, 11185, 18110, 22370, 36220, 44740, 4051207, 8102414, 16204828, 20256035, 40512070, 81024140]

約数ペア:

[(1, 81024140), (2, 40512070), (4, 20256035), (5, 16204828), (10, 8102414), (20, 4051207), (1811, 44740), (2237, 36220), (3622, 22370), (4474, 18110), (7244, 11185), (8948, 9055)]