42816820

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{49787}}^1$

素因数の和:49839

約数の個数: 24

約数和(自身を含む): 92008224

約数和(自身を除く): 49191404

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 49787, 99574, 199148, 248935, 497870, 995740, 2140841, 4281682, 8563364, 10704205, 21408410, 42816820]

約数ペア:

[(1, 42816820), (2, 21408410), (4, 10704205), (5, 8563364), (10, 4281682), (20, 2140841), (43, 995740), (86, 497870), (172, 248935), (215, 199148), (430, 99574), (860, 49787)]