257792644

素因数分解:

$2^2\times {\mathrm{661}}^1\times {\mathrm{97501}}^1$

素因数の和:98166

約数の個数: 12

約数和(自身を含む): 451824268

約数和(自身を除く): 194031624

約数列:

[1, 2, 4, 661, 1322, 2644, 97501, 195002, 390004, 64448161, 128896322, 257792644]

約数ペア:

[(1, 257792644), (2, 128896322), (4, 64448161), (661, 390004), (1322, 195002), (2644, 97501)]