66028220

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{76777}}^1$

素因数の和:76829

約数の個数: 24

約数和(自身を含む): 141885744

約数和(自身を除く): 75857524

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 76777, 153554, 307108, 383885, 767770, 1535540, 3301411, 6602822, 13205644, 16507055, 33014110, 66028220]

約数ペア:

[(1, 66028220), (2, 33014110), (4, 16507055), (5, 13205644), (10, 6602822), (20, 3301411), (43, 1535540), (86, 767770), (172, 383885), (215, 307108), (430, 153554), (860, 76777)]