87839540

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{102139}}^1$

素因数の和:102191

約数の個数: 24

約数和(自身を含む): 188754720

約数和(自身を除く): 100915180

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 102139, 204278, 408556, 510695, 1021390, 2042780, 4391977, 8783954, 17567908, 21959885, 43919770, 87839540]

約数ペア:

[(1, 87839540), (2, 43919770), (4, 21959885), (5, 17567908), (10, 8783954), (20, 4391977), (43, 2042780), (86, 1021390), (172, 510695), (215, 408556), (430, 204278), (860, 102139)]