81570915

素因数分解:

$3^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{5647}}^1$

素因数の和:5768

約数の個数: 32

約数和(自身を含む): 146396160

約数和(自身を除く): 64825245

約数列:

[1, 3, 5, 9, 15, 27, 45, 107, 135, 321, 535, 963, 1605, 2889, 4815, 5647, 14445, 16941, 28235, 50823, 84705, 152469, 254115, 604229, 762345, 1812687, 3021145, 5438061, 9063435, 16314183, 27190305, 81570915]

約数ペア:

[(1, 81570915), (3, 27190305), (5, 16314183), (9, 9063435), (15, 5438061), (27, 3021145), (45, 1812687), (107, 762345), (135, 604229), (321, 254115), (535, 152469), (963, 84705), (1605, 50823), (2889, 28235), (4815, 16941), (5647, 14445)]