81996795

素因数分解:

$3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{13109}}^1$

素因数の和:13259

約数の個数: 24

約数和(自身を含む): 143161200

約数和(自身を除く): 61164405

約数列:

[1, 3, 5, 9, 15, 45, 139, 417, 695, 1251, 2085, 6255, 13109, 39327, 65545, 117981, 196635, 589905, 1822151, 5466453, 9110755, 16399359, 27332265, 81996795]

約数ペア:

[(1, 81996795), (3, 27332265), (5, 16399359), (9, 9110755), (15, 5466453), (45, 1822151), (139, 589905), (417, 196635), (695, 117981), (1251, 65545), (2085, 39327), (6255, 13109)]