257435218

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{1999}}^1\times {\mathrm{3389}}^1$

素因数の和:5409

約数の個数: 16

約数和(自身を含む): 406800000

約数和(自身を除く): 149364782

約数列:

[1, 2, 19, 38, 1999, 3389, 3998, 6778, 37981, 64391, 75962, 128782, 6774611, 13549222, 128717609, 257435218]

約数ペア:

[(1, 257435218), (2, 128717609), (19, 13549222), (38, 6774611), (1999, 128782), (3389, 75962), (3998, 64391), (6778, 37981)]