257029396

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{523}}^1\times {\mathrm{727}}^1$

素因数の和:1280

約数の個数: 36

約数和(自身を含む): 488665632

約数和(自身を除く): 231636236

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 523, 676, 727, 1046, 1454, 2092, 2908, 6799, 9451, 13598, 18902, 27196, 37804, 88387, 122863, 176774, 245726, 353548, 380221, 491452, 760442, 1520884, 4942873, 9885746, 19771492, 64257349, 128514698, 257029396]

約数ペア:

[(1, 257029396), (2, 128514698), (4, 64257349), (13, 19771492), (26, 9885746), (52, 4942873), (169, 1520884), (338, 760442), (523, 491452), (676, 380221), (727, 353548), (1046, 245726), (1454, 176774), (2092, 122863), (2908, 88387), (6799, 37804), (9451, 27196), (13598, 18902)]