208020725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{12821}}^1$

素因数の和:12901

約数の個数: 24

約数和(自身を含む): 286187040

約数和(自身を除く): 78166315

約数列:

[1, 5, 11, 25, 55, 59, 275, 295, 649, 1475, 3245, 12821, 16225, 64105, 141031, 320525, 705155, 756439, 3525775, 3782195, 8320829, 18910975, 41604145, 208020725]

約数ペア:

[(1, 208020725), (5, 41604145), (11, 18910975), (25, 8320829), (55, 3782195), (59, 3525775), (275, 756439), (295, 705155), (649, 320525), (1475, 141031), (3245, 64105), (12821, 16225)]