257727745

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{76819}}^1$

素因数の和:76896

約数の個数: 16

約数和(自身を含む): 342924480

約数和(自身を除く): 85196735

約数列:

[1, 5, 11, 55, 61, 305, 671, 3355, 76819, 384095, 845009, 4225045, 4685959, 23429795, 51545549, 257727745]

約数ペア:

[(1, 257727745), (5, 51545549), (11, 23429795), (55, 4685959), (61, 4225045), (305, 845009), (671, 384095), (3355, 76819)]