80978222

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{20903}}^1$

素因数の和:21067

約数の個数: 16

約数和(自身を含む): 131695200

約数和(自身を除く): 50716978

約数列:

[1, 2, 13, 26, 149, 298, 1937, 3874, 20903, 41806, 271739, 543478, 3114547, 6229094, 40489111, 80978222]

約数ペア:

[(1, 80978222), (2, 40489111), (13, 6229094), (26, 3114547), (149, 543478), (298, 271739), (1937, 41806), (3874, 20903)]