257357828

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{707027}}^1$

素因数の和:707051

約数の個数: 24

約数和(自身を含む): 554309952

約数和(自身を除く): 296952124

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 707027, 1414054, 2828108, 4949189, 9191351, 9898378, 18382702, 19796756, 36765404, 64339457, 128678914, 257357828]

約数ペア:

[(1, 257357828), (2, 128678914), (4, 64339457), (7, 36765404), (13, 19796756), (14, 18382702), (26, 9898378), (28, 9191351), (52, 4949189), (91, 2828108), (182, 1414054), (364, 707027)]