20605165

素因数分解:

$5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{173}}^1$

素因数の和:309

約数の個数: 32

約数和(自身を含む): 29465856

約数和(自身を除く): 8860691

約数列:

[1, 5, 7, 35, 41, 83, 173, 205, 287, 415, 581, 865, 1211, 1435, 2905, 3403, 6055, 7093, 14359, 17015, 23821, 35465, 49651, 71795, 100513, 119105, 248255, 502565, 588719, 2943595, 4121033, 20605165]

約数ペア:

[(1, 20605165), (5, 4121033), (7, 2943595), (35, 588719), (41, 502565), (83, 248255), (173, 119105), (205, 100513), (287, 71795), (415, 49651), (581, 35465), (865, 23821), (1211, 17015), (1435, 14359), (2905, 7093), (3403, 6055)]