81812660

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{95131}}^1$

素因数の和:95183

約数の個数: 24

約数和(自身を含む): 175803936

約数和(自身を除く): 93991276

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 95131, 190262, 380524, 475655, 951310, 1902620, 4090633, 8181266, 16362532, 20453165, 40906330, 81812660]

約数ペア:

[(1, 81812660), (2, 40906330), (4, 20453165), (5, 16362532), (10, 8181266), (20, 4090633), (43, 1902620), (86, 951310), (172, 475655), (215, 380524), (430, 190262), (860, 95131)]