20290568

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{23269}}^1$

素因数の和:23384

約数の個数: 16

約数和(自身を含む): 38395500

約数和(自身を除く): 18104932

約数列:

[1, 2, 4, 8, 109, 218, 436, 872, 23269, 46538, 93076, 186152, 2536321, 5072642, 10145284, 20290568]

約数ペア:

[(1, 20290568), (2, 10145284), (4, 5072642), (8, 2536321), (109, 186152), (218, 93076), (436, 46538), (872, 23269)]