20199608920

素因数分解:

$2^3\times 5^1\times {\mathrm{504990223}}^1$

素因数の和:504990234

約数の個数: 16

約数和(自身を含む): 45449120160

約数和(自身を除く): 25249511240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 504990223, 1009980446, 2019960892, 2524951115, 4039921784, 5049902230, 10099804460, 20199608920]

約数ペア:

[(1, 20199608920), (2, 10099804460), (4, 5049902230), (5, 4039921784), (8, 2524951115), (10, 2019960892), (20, 1009980446), (40, 504990223)]