19958156950

素因数分解:

$2^1\times 5^2\times {\mathrm{399163139}}^1$

素因数の和:399163151

約数の個数: 12

約数和(自身を含む): 37122172020

約数和(自身を除く): 17164015070

約数列:

[1, 2, 5, 10, 25, 50, 399163139, 798326278, 1995815695, 3991631390, 9979078475, 19958156950]

約数ペア:

[(1, 19958156950), (2, 9979078475), (5, 3991631390), (10, 1995815695), (25, 798326278), (50, 399163139)]