257278

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1$

素因数の和:96

約数の個数: 32

約数和(自身を含む): 497664

約数和(自身を除く): 240386

約数列:

[1, 2, 7, 14, 17, 23, 34, 46, 47, 94, 119, 161, 238, 322, 329, 391, 658, 782, 799, 1081, 1598, 2162, 2737, 5474, 5593, 7567, 11186, 15134, 18377, 36754, 128639, 257278]

約数ペア:

[(1, 257278), (2, 128639), (7, 36754), (14, 18377), (17, 15134), (23, 11186), (34, 7567), (46, 5593), (47, 5474), (94, 2737), (119, 2162), (161, 1598), (238, 1081), (322, 799), (329, 782), (391, 658)]