257686

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1$

素因数の和:96

約数の個数: 32

約数和(自身を含む): 489888

約数和(自身を除く): 232202

約数列:

[1, 2, 11, 13, 17, 22, 26, 34, 53, 106, 143, 187, 221, 286, 374, 442, 583, 689, 901, 1166, 1378, 1802, 2431, 4862, 7579, 9911, 11713, 15158, 19822, 23426, 128843, 257686]

約数ペア:

[(1, 257686), (2, 128843), (11, 23426), (13, 19822), (17, 15158), (22, 11713), (26, 9911), (34, 7579), (53, 4862), (106, 2431), (143, 1802), (187, 1378), (221, 1166), (286, 901), (374, 689), (442, 583)]