20080912

素因数分解:

$2^4\times {\mathrm{137}}^1\times {\mathrm{9161}}^1$

素因数の和:9306

約数の個数: 20

約数和(自身を含む): 39195036

約数和(自身を除く): 19114124

約数列:

[1, 2, 4, 8, 16, 137, 274, 548, 1096, 2192, 9161, 18322, 36644, 73288, 146576, 1255057, 2510114, 5020228, 10040456, 20080912]

約数ペア:

[(1, 20080912), (2, 10040456), (4, 5020228), (8, 2510114), (16, 1255057), (137, 146576), (274, 73288), (548, 36644), (1096, 18322), (2192, 9161)]