1377252020

素因数分解:

$2^2\times 5^1\times {\mathrm{2689}}^1\times {\mathrm{25609}}^1$

素因数の和:28307

約数の個数: 24

約数和(自身を含む): 2893417800

約数和(自身を除く): 1516165780

約数列:

[1, 2, 4, 5, 10, 20, 2689, 5378, 10756, 13445, 25609, 26890, 51218, 53780, 102436, 128045, 256090, 512180, 68862601, 137725202, 275450404, 344313005, 688626010, 1377252020]

約数ペア:

[(1, 1377252020), (2, 688626010), (4, 344313005), (5, 275450404), (10, 137725202), (20, 68862601), (2689, 512180), (5378, 256090), (10756, 128045), (13445, 102436), (25609, 53780), (26890, 51218)]