128513905

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{27847}}^1$

素因数の和:27936

約数の個数: 16

約数和(自身を含む): 168424704

約数和(自身を除く): 39910799

約数列:

[1, 5, 13, 65, 71, 355, 923, 4615, 27847, 139235, 362011, 1810055, 1977137, 9885685, 25702781, 128513905]

約数ペア:

[(1, 128513905), (5, 25702781), (13, 9885685), (65, 1977137), (71, 1810055), (355, 362011), (923, 139235), (4615, 27847)]