12900320

素因数分解:

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

素因数の和:80642

約数の個数: 24

約数和(自身を含む): 30477384

約数和(自身を除く): 17577064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 80627, 161254, 322508, 403135, 645016, 806270, 1290032, 1612540, 2580064, 3225080, 6450160, 12900320]

約数ペア:

[(1, 12900320), (2, 6450160), (4, 3225080), (5, 2580064), (8, 1612540), (10, 1290032), (16, 806270), (20, 645016), (32, 403135), (40, 322508), (80, 161254), (160, 80627)]