81468595

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:355

約数の個数: 32

約数和(自身を含む): 108380160

約数和(自身を除く): 26911565

約数列:

[1, 5, 13, 65, 71, 127, 139, 355, 635, 695, 923, 1651, 1807, 4615, 8255, 9017, 9035, 9869, 17653, 45085, 49345, 88265, 117221, 128297, 229489, 586105, 641485, 1147445, 1253363, 6266815, 16293719, 81468595]

約数ペア:

[(1, 81468595), (5, 16293719), (13, 6266815), (65, 1253363), (71, 1147445), (127, 641485), (139, 586105), (355, 229489), (635, 128297), (695, 117221), (923, 88265), (1651, 49345), (1807, 45085), (4615, 17653), (8255, 9869), (9017, 9035)]