81010905

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{2099}}^1$

素因数の和:2221

約数の個数: 32

約数和(自身を含む): 135475200

約数和(自身を除く): 54464295

約数列:

[1, 3, 5, 15, 31, 83, 93, 155, 249, 415, 465, 1245, 2099, 2573, 6297, 7719, 10495, 12865, 31485, 38595, 65069, 174217, 195207, 325345, 522651, 871085, 976035, 2613255, 5400727, 16202181, 27003635, 81010905]

約数ペア:

[(1, 81010905), (3, 27003635), (5, 16202181), (15, 5400727), (31, 2613255), (83, 976035), (93, 871085), (155, 522651), (249, 325345), (415, 195207), (465, 174217), (1245, 65069), (2099, 38595), (2573, 31485), (6297, 12865), (7719, 10495)]