256672356638

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{355501879}}^1$

素因数の和:355501919

約数の個数: 12

約数和(自身を含む): 406338648840

約数和(自身を除く): 149666292202

約数列:

[1, 2, 19, 38, 361, 722, 355501879, 711003758, 6754535701, 13509071402, 128336178319, 256672356638]

約数ペア:

[(1, 256672356638), (2, 128336178319), (19, 13509071402), (38, 6754535701), (361, 711003758), (722, 355501879)]