171860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{661}}^1$

素因数の和:683

約数の個数: 24

約数和(自身を含む): 389256

約数和(自身を除く): 217396

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 661, 1322, 2644, 3305, 6610, 8593, 13220, 17186, 34372, 42965, 85930, 171860]

約数ペア:

[(1, 171860), (2, 85930), (4, 42965), (5, 34372), (10, 17186), (13, 13220), (20, 8593), (26, 6610), (52, 3305), (65, 2644), (130, 1322), (260, 661)]