257087336

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{907}}^1\times {\mathrm{3221}}^1$

素因数の和:4145

約数の個数: 32

約数和(自身を含む): 526603680

約数和(自身を除く): 269516344

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 907, 1814, 3221, 3628, 6442, 7256, 9977, 12884, 19954, 25768, 35431, 39908, 70862, 79816, 141724, 283448, 2921447, 5842894, 11685788, 23371576, 32135917, 64271834, 128543668, 257087336]

約数ペア:

[(1, 257087336), (2, 128543668), (4, 64271834), (8, 32135917), (11, 23371576), (22, 11685788), (44, 5842894), (88, 2921447), (907, 283448), (1814, 141724), (3221, 79816), (3628, 70862), (6442, 39908), (7256, 35431), (9977, 25768), (12884, 19954)]