256518314

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{138959}}^1$

素因数の和:139045

約数の個数: 16

約数和(自身を含む): 420215040

約数和(自身を除く): 163696726

約数列:

[1, 2, 13, 26, 71, 142, 923, 1846, 138959, 277918, 1806467, 3612934, 9866089, 19732178, 128259157, 256518314]

約数ペア:

[(1, 256518314), (2, 128259157), (13, 19732178), (26, 9866089), (71, 3612934), (142, 1806467), (923, 277918), (1846, 138959)]