39990992

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{80627}}^1$

素因数の和:80666

約数の個数: 20

約数和(自身を含む): 79982976

約数和(自身を除く): 39991984

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 80627, 161254, 322508, 645016, 1290032, 2499437, 4998874, 9997748, 19995496, 39990992]

約数ペア:

[(1, 39990992), (2, 19995496), (4, 9997748), (8, 4998874), (16, 2499437), (31, 1290032), (62, 645016), (124, 322508), (248, 161254), (496, 80627)]