20289244

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{199}}^1\times {\mathrm{359}}^1$

素因数の和:633

約数の個数: 24

約数和(自身を含む): 36288000

約数和(自身を除く): 15998756

約数列:

[1, 2, 4, 71, 142, 199, 284, 359, 398, 718, 796, 1436, 14129, 25489, 28258, 50978, 56516, 71441, 101956, 142882, 285764, 5072311, 10144622, 20289244]

約数ペア:

[(1, 20289244), (2, 10144622), (4, 5072311), (71, 285764), (142, 142882), (199, 101956), (284, 71441), (359, 56516), (398, 50978), (718, 28258), (796, 25489), (1436, 14129)]