257316306

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{106417}}^1$

素因数の和:106466

約数の個数: 32

約数和(自身を含む): 572103168

約数和(自身を除く): 314786862

約数列:

[1, 2, 3, 6, 13, 26, 31, 39, 62, 78, 93, 186, 403, 806, 1209, 2418, 106417, 212834, 319251, 638502, 1383421, 2766842, 3298927, 4150263, 6597854, 8300526, 9896781, 19793562, 42886051, 85772102, 128658153, 257316306]

約数ペア:

[(1, 257316306), (2, 128658153), (3, 85772102), (6, 42886051), (13, 19793562), (26, 9896781), (31, 8300526), (39, 6597854), (62, 4150263), (78, 3298927), (93, 2766842), (186, 1383421), (403, 638502), (806, 319251), (1209, 212834), (2418, 106417)]