81197505

素因数分解:

$3^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{3323}}^1$

素因数の和:3518

約数の個数: 32

約数和(自身を含む): 145192320

約数和(自身を除く): 63994815

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 181, 543, 905, 1629, 2715, 3323, 4887, 8145, 9969, 16615, 24435, 29907, 49845, 89721, 149535, 448605, 601463, 1804389, 3007315, 5413167, 9021945, 16239501, 27065835, 81197505]

約数ペア:

[(1, 81197505), (3, 27065835), (5, 16239501), (9, 9021945), (15, 5413167), (27, 3007315), (45, 1804389), (135, 601463), (181, 448605), (543, 149535), (905, 89721), (1629, 49845), (2715, 29907), (3323, 24435), (4887, 16615), (8145, 9969)]