18845420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{85661}}^1$

素因数の和:85681

約数の個数: 24

約数和(自身を含む): 43173648

約数和(自身を除く): 24328228

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 85661, 171322, 342644, 428305, 856610, 942271, 1713220, 1884542, 3769084, 4711355, 9422710, 18845420]

約数ペア:

[(1, 18845420), (2, 9422710), (4, 4711355), (5, 3769084), (10, 1884542), (11, 1713220), (20, 942271), (22, 856610), (44, 428305), (55, 342644), (110, 171322), (220, 85661)]