257715

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1$

素因数の和:120

約数の個数: 32

約数和(自身を含む): 483840

約数和(自身を除く): 226125

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 83, 115, 135, 207, 249, 345, 415, 621, 747, 1035, 1245, 1909, 2241, 3105, 3735, 5727, 9545, 11205, 17181, 28635, 51543, 85905, 257715]

約数ペア:

[(1, 257715), (3, 85905), (5, 51543), (9, 28635), (15, 17181), (23, 11205), (27, 9545), (45, 5727), (69, 3735), (83, 3105), (115, 2241), (135, 1909), (207, 1245), (249, 1035), (345, 747), (415, 621)]