257487474098

素因数分解:

$2^1\times {\mathrm{307}}^1\times {\mathrm{631}}^1\times {\mathrm{664597}}^1$

素因数の和:665537

約数の個数: 16

約数和(自身を含む): 388103964864

約数和(自身を除く): 130616490766

約数列:

[1, 2, 307, 614, 631, 1262, 193717, 387434, 664597, 1329194, 204031279, 408062558, 419360707, 838721414, 128743737049, 257487474098]

約数ペア:

[(1, 257487474098), (2, 128743737049), (307, 838721414), (614, 419360707), (631, 408062558), (1262, 204031279), (193717, 1329194), (387434, 664597)]