2005128309

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{251}}^1\times {\mathrm{911}}^1$

素因数の和:1281

約数の個数: 32

約数和(自身を含む): 2794659840

約数和(自身を除く): 789531531

約数列:

[1, 3, 37, 79, 111, 237, 251, 753, 911, 2733, 2923, 8769, 9287, 19829, 27861, 33707, 59487, 71969, 101121, 215907, 228661, 685983, 733673, 2201019, 2662853, 7988559, 8460457, 18064219, 25381371, 54192657, 668376103, 2005128309]

約数ペア:

[(1, 2005128309), (3, 668376103), (37, 54192657), (79, 25381371), (111, 18064219), (237, 8460457), (251, 7988559), (753, 2662853), (911, 2201019), (2733, 733673), (2923, 685983), (8769, 228661), (9287, 215907), (19829, 101121), (27861, 71969), (33707, 59487)]