20963020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{80627}}^1$

素因数の和:80649

約数の個数: 24

約数和(自身を含む): 47409264

約数和(自身を除く): 26446244

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 80627, 161254, 322508, 403135, 806270, 1048151, 1612540, 2096302, 4192604, 5240755, 10481510, 20963020]

約数ペア:

[(1, 20963020), (2, 10481510), (4, 5240755), (5, 4192604), (10, 2096302), (13, 1612540), (20, 1048151), (26, 806270), (52, 403135), (65, 322508), (130, 161254), (260, 80627)]