257054135

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{208141}}^1$

素因数の和:208178

約数の個数: 16

約数和(自身を含む): 349678560

約数和(自身を除く): 92624425

約数列:

[1, 5, 13, 19, 65, 95, 247, 1235, 208141, 1040705, 2705833, 3954679, 13529165, 19773395, 51410827, 257054135]

約数ペア:

[(1, 257054135), (5, 51410827), (13, 19773395), (19, 13529165), (65, 3954679), (95, 2705833), (247, 1040705), (1235, 208141)]