256438078

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{147209}}^1$

素因数の和:147291

約数の個数: 16

約数和(自身を含む): 420431760

約数和(自身を除く): 163993682

約数列:

[1, 2, 13, 26, 67, 134, 871, 1742, 147209, 294418, 1913717, 3827434, 9863003, 19726006, 128219039, 256438078]

約数ペア:

[(1, 256438078), (2, 128219039), (13, 19726006), (26, 9863003), (67, 3827434), (134, 1913717), (871, 294418), (1742, 147209)]