257015824

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{1235653}}^1$

素因数の和:1235674

約数の個数: 20

約数和(自身を含む): 536273836

約数和(自身を除く): 279258012

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 1235653, 2471306, 4942612, 9885224, 16063489, 19770448, 32126978, 64253956, 128507912, 257015824]

約数ペア:

[(1, 257015824), (2, 128507912), (4, 64253956), (8, 32126978), (13, 19770448), (16, 16063489), (26, 9885224), (52, 4942612), (104, 2471306), (208, 1235653)]