680034416

素因数分解:

$2^4\times {\mathrm{1997}}^1\times {\mathrm{21283}}^1$

素因数の和:23288

約数の個数: 20

約数和(自身を含む): 1318288392

約数和(自身を除く): 638253976

約数列:

[1, 2, 4, 8, 16, 1997, 3994, 7988, 15976, 21283, 31952, 42566, 85132, 170264, 340528, 42502151, 85004302, 170008604, 340017208, 680034416]

約数ペア:

[(1, 680034416), (2, 340017208), (4, 170008604), (8, 85004302), (16, 42502151), (1997, 340528), (3994, 170264), (7988, 85132), (15976, 42566), (21283, 31952)]