81081555

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{1181}}^1$

素因数の和:1411

約数の個数: 32

約数和(自身を含む): 136166400

約数和(自身を除く): 55084845

約数列:

[1, 3, 5, 15, 23, 69, 115, 199, 345, 597, 995, 1181, 2985, 3543, 4577, 5905, 13731, 17715, 22885, 27163, 68655, 81489, 135815, 235019, 407445, 705057, 1175095, 3525285, 5405437, 16216311, 27027185, 81081555]

約数ペア:

[(1, 81081555), (3, 27027185), (5, 16216311), (15, 5405437), (23, 3525285), (69, 1175095), (115, 705057), (199, 407445), (345, 235019), (597, 135815), (995, 81489), (1181, 68655), (2985, 27163), (3543, 22885), (4577, 17715), (5905, 13731)]