81755135

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{1621}}^1$

素因数の和:1775

約数の個数: 32

約数和(自身を含む): 123323904

約数和(自身を除く): 41568769

約数列:

[1, 5, 7, 11, 35, 55, 77, 131, 385, 655, 917, 1441, 1621, 4585, 7205, 8105, 10087, 11347, 17831, 50435, 56735, 89155, 124817, 212351, 624085, 1061755, 1486457, 2335861, 7432285, 11679305, 16351027, 81755135]

約数ペア:

[(1, 81755135), (5, 16351027), (7, 11679305), (11, 7432285), (35, 2335861), (55, 1486457), (77, 1061755), (131, 624085), (385, 212351), (655, 124817), (917, 89155), (1441, 56735), (1621, 50435), (4585, 17831), (7205, 11347), (8105, 10087)]