172920715

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{433}}^1$

素因数の和:639

約数の個数: 32

約数和(自身を含む): 232860096

約数和(自身を除く): 59939381

約数列:

[1, 5, 11, 53, 55, 137, 265, 433, 583, 685, 1507, 2165, 2915, 4763, 7261, 7535, 22949, 23815, 36305, 59321, 79871, 114745, 252439, 296605, 399355, 652531, 1262195, 3144013, 3262655, 15720065, 34584143, 172920715]

約数ペア:

[(1, 172920715), (5, 34584143), (11, 15720065), (53, 3262655), (55, 3144013), (137, 1262195), (265, 652531), (433, 399355), (583, 296605), (685, 252439), (1507, 114745), (2165, 79871), (2915, 59321), (4763, 36305), (7261, 23815), (7535, 22949)]