257425922

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{319387}}^1$

素因数の和:319433

約数の個数: 16

約数和(自身を含む): 429257472

約数和(自身を除く): 171831550

約数列:

[1, 2, 13, 26, 31, 62, 403, 806, 319387, 638774, 4152031, 8304062, 9900997, 19801994, 128712961, 257425922]

約数ペア:

[(1, 257425922), (2, 128712961), (13, 19801994), (26, 9900997), (31, 8304062), (62, 4152031), (403, 638774), (806, 319387)]