81618105

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{1217}}^1$

素因数の和:1505

約数の個数: 32

約数和(自身を含む): 138910464

約数和(自身を除く): 57292359

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 263, 789, 1217, 1315, 3651, 3945, 4471, 6085, 13413, 18255, 20689, 22355, 62067, 67065, 103445, 310335, 320071, 960213, 1600355, 4801065, 5441207, 16323621, 27206035, 81618105]

約数ペア:

[(1, 81618105), (3, 27206035), (5, 16323621), (15, 5441207), (17, 4801065), (51, 1600355), (85, 960213), (255, 320071), (263, 310335), (789, 103445), (1217, 67065), (1315, 62067), (3651, 22355), (3945, 20689), (4471, 18255), (6085, 13413)]