20178036920

素因数分解:

$2^3\times 5^1\times {\mathrm{504450923}}^1$

素因数の和:504450934

約数の個数: 16

約数和(自身を含む): 45400583160

約数和(自身を除く): 25222546240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 504450923, 1008901846, 2017803692, 2522254615, 4035607384, 5044509230, 10089018460, 20178036920]

約数ペア:

[(1, 20178036920), (2, 10089018460), (4, 5044509230), (5, 4035607384), (8, 2522254615), (10, 2017803692), (20, 1008901846), (40, 504450923)]