20345900

素因数分解:

$2^2\times 5^2\times {\mathrm{203459}}^1$

素因数の和:203473

約数の個数: 18

約数和(自身を含む): 44150820

約数和(自身を除く): 23804920

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 203459, 406918, 813836, 1017295, 2034590, 4069180, 5086475, 10172950, 20345900]

約数ペア:

[(1, 20345900), (2, 10172950), (4, 5086475), (5, 4069180), (10, 2034590), (20, 1017295), (25, 813836), (50, 406918), (100, 203459)]