639738322

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{990307}}^1$

素因数の和:990345

約数の個数: 16

約数和(自身を含む): 1069532640

約数和(自身を除く): 429794318

約数列:

[1, 2, 17, 19, 34, 38, 323, 646, 990307, 1980614, 16835219, 18815833, 33670438, 37631666, 319869161, 639738322]

約数ペア:

[(1, 639738322), (2, 319869161), (17, 37631666), (19, 33670438), (34, 18815833), (38, 16835219), (323, 1980614), (646, 990307)]