19868060

素因数分解:

$2^2\times 5^1\times {\mathrm{947}}^1\times {\mathrm{1049}}^1$

素因数の和:2005

約数の個数: 24

約数和(自身を含む): 41806800

約数和(自身を除く): 21938740

約数列:

[1, 2, 4, 5, 10, 20, 947, 1049, 1894, 2098, 3788, 4196, 4735, 5245, 9470, 10490, 18940, 20980, 993403, 1986806, 3973612, 4967015, 9934030, 19868060]

約数ペア:

[(1, 19868060), (2, 9934030), (4, 4967015), (5, 3973612), (10, 1986806), (20, 993403), (947, 20980), (1049, 18940), (1894, 10490), (2098, 9470), (3788, 5245), (4196, 4735)]