639918242

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{7803881}}^1$

素因数の和:7803924

約数の個数: 8

約数和(自身を含む): 983289132

約数和(自身を除く): 343370890

約数列:

[1, 2, 41, 82, 7803881, 15607762, 319959121, 639918242]

約数ペア:

[(1, 639918242), (2, 319959121), (41, 15607762), (82, 7803881)]