80731478

素因数分解:

$2^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1\times {\mathrm{1949}}^1$

素因数の和:2239

約数の個数: 16

約数和(自身を含む): 122850000

約数和(自身を除く): 42118522

約数列:

[1, 2, 139, 149, 278, 298, 1949, 3898, 20711, 41422, 270911, 290401, 541822, 580802, 40365739, 80731478]

約数ペア:

[(1, 80731478), (2, 40365739), (139, 580802), (149, 541822), (278, 290401), (298, 270911), (1949, 41422), (3898, 20711)]