19879874540

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{9289661}}^1$

素因数の和:9289777

約数の個数: 24

約数和(自身を含む): 42137906832

約数和(自身を除く): 22258032292

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 9289661, 18579322, 37158644, 46448305, 92896610, 185793220, 993993727, 1987987454, 3975974908, 4969968635, 9939937270, 19879874540]

約数ペア:

[(1, 19879874540), (2, 9939937270), (4, 4969968635), (5, 3975974908), (10, 1987987454), (20, 993993727), (107, 185793220), (214, 92896610), (428, 46448305), (535, 37158644), (1070, 18579322), (2140, 9289661)]