8287820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{419}}^1$

素因数の和:494

約数の個数: 48

約数和(自身を含む): 18627840

約数和(自身を除く): 10340020

約数列:

[1, 2, 4, 5, 10, 20, 23, 43, 46, 86, 92, 115, 172, 215, 230, 419, 430, 460, 838, 860, 989, 1676, 1978, 2095, 3956, 4190, 4945, 8380, 9637, 9890, 18017, 19274, 19780, 36034, 38548, 48185, 72068, 90085, 96370, 180170, 192740, 360340, 414391, 828782, 1657564, 2071955, 4143910, 8287820]

約数ペア:

[(1, 8287820), (2, 4143910), (4, 2071955), (5, 1657564), (10, 828782), (20, 414391), (23, 360340), (43, 192740), (46, 180170), (86, 96370), (92, 90085), (115, 72068), (172, 48185), (215, 38548), (230, 36034), (419, 19780), (430, 19274), (460, 18017), (838, 9890), (860, 9637), (989, 8380), (1676, 4945), (1978, 4190), (2095, 3956)]