21707600

素因数分解:

$2^4\times 5^2\times {\mathrm{54269}}^1$

素因数の和:54287

約数の個数: 30

約数和(自身を含む): 52153470

約数和(自身を除く): 30445870

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 54269, 108538, 217076, 271345, 434152, 542690, 868304, 1085380, 1356725, 2170760, 2713450, 4341520, 5426900, 10853800, 21707600]

約数ペア:

[(1, 21707600), (2, 10853800), (4, 5426900), (5, 4341520), (8, 2713450), (10, 2170760), (16, 1356725), (20, 1085380), (25, 868304), (40, 542690), (50, 434152), (80, 271345), (100, 217076), (200, 108538), (400, 54269)]