257687116

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{281}}^1\times {\mathrm{3229}}^1$

素因数の和:3585

約数の個数: 24

約数和(自身を含む): 459073440

約数和(自身を除く): 201386324

約数列:

[1, 2, 4, 71, 142, 281, 284, 562, 1124, 3229, 6458, 12916, 19951, 39902, 79804, 229259, 458518, 907349, 917036, 1814698, 3629396, 64421779, 128843558, 257687116]

約数ペア:

[(1, 257687116), (2, 128843558), (4, 64421779), (71, 3629396), (142, 1814698), (281, 917036), (284, 907349), (562, 458518), (1124, 229259), (3229, 79804), (6458, 39902), (12916, 19951)]