422495140

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{217781}}^1$

素因数の和:217887

約数の個数: 24

約数和(自身を含む): 896390712

約数和(自身を除く): 473895572

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 217781, 435562, 871124, 1088905, 2177810, 4355620, 21124757, 42249514, 84499028, 105623785, 211247570, 422495140]

約数ペア:

[(1, 422495140), (2, 211247570), (4, 105623785), (5, 84499028), (10, 42249514), (20, 21124757), (97, 4355620), (194, 2177810), (388, 1088905), (485, 871124), (970, 435562), (1940, 217781)]