20145707180

素因数分解:

$2^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{2337089}}^1$

素因数の和:2337529

約数の個数: 24

約数和(自身を含む): 42404160960

約数和(自身を除く): 22258453780

約数列:

[1, 2, 4, 5, 10, 20, 431, 862, 1724, 2155, 4310, 8620, 2337089, 4674178, 9348356, 11685445, 23370890, 46741780, 1007285359, 2014570718, 4029141436, 5036426795, 10072853590, 20145707180]

約数ペア:

[(1, 20145707180), (2, 10072853590), (4, 5036426795), (5, 4029141436), (10, 2014570718), (20, 1007285359), (431, 46741780), (862, 23370890), (1724, 11685445), (2155, 9348356), (4310, 4674178), (8620, 2337089)]