257706

素因数分解:

$2^1\times 3^2\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:250

約数の個数: 24

約数和(自身を含む): 567840

約数和(自身を除く): 310134

約数列:

[1, 2, 3, 6, 9, 18, 103, 139, 206, 278, 309, 417, 618, 834, 927, 1251, 1854, 2502, 14317, 28634, 42951, 85902, 128853, 257706]

約数ペア:

[(1, 257706), (2, 128853), (3, 85902), (6, 42951), (9, 28634), (18, 14317), (103, 2502), (139, 1854), (206, 1251), (278, 927), (309, 834), (417, 618)]