389680972

素因数分解:

$2^2\times {\mathrm{197}}^1\times {\mathrm{494519}}^1$

素因数の和:494720

約数の個数: 12

約数和(自身を含む): 685404720

約数和(自身を除く): 295723748

約数列:

[1, 2, 4, 197, 394, 788, 494519, 989038, 1978076, 97420243, 194840486, 389680972]

約数ペア:

[(1, 389680972), (2, 194840486), (4, 97420243), (197, 1978076), (394, 989038), (788, 494519)]