20520115

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53299}}^1$

素因数の和:53322

約数の個数: 16

約数和(自身を含む): 30700800

約数和(自身を除く): 10180685

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 53299, 266495, 373093, 586289, 1865465, 2931445, 4104023, 20520115]

約数ペア:

[(1, 20520115), (5, 4104023), (7, 2931445), (11, 1865465), (35, 586289), (55, 373093), (77, 266495), (385, 53299)]