19565020

素因数分解:

$2^2\times 5^1\times {\mathrm{947}}^1\times {\mathrm{1033}}^1$

素因数の和:1989

約数の個数: 24

約数和(自身を含む): 41169744

約数和(自身を除く): 21604724

約数列:

[1, 2, 4, 5, 10, 20, 947, 1033, 1894, 2066, 3788, 4132, 4735, 5165, 9470, 10330, 18940, 20660, 978251, 1956502, 3913004, 4891255, 9782510, 19565020]

約数ペア:

[(1, 19565020), (2, 9782510), (4, 4891255), (5, 3913004), (10, 1956502), (20, 978251), (947, 20660), (1033, 18940), (1894, 10330), (2066, 9470), (3788, 5165), (4132, 4735)]