80721775.000000000

素因数分解:

$2^1\times 3^3\times {\mathrm{29}}^1\times {\mathrm{71153}}^1$

素因数の和:71193

約数の個数: 32

約数和(自身を含む): 256154400

約数和(自身を除く): 144728802

約数列:

[1, 2, 3, 6, 9, 18, 27, 29, 54, 58, 87, 174, 261, 522, 783, 1566, 71153, 142306, 213459, 426918, 640377, 1280754, 1921131, 2063437, 3842262, 4126874, 6190311, 12380622, 18570933, 37141866, 55712799, 111425598]

約数ペア:

[(1, 111425598), (2, 55712799), (3, 37141866), (6, 18570933), (9, 12380622), (18, 6190311), (27, 4126874), (29, 3842262), (54, 2063437), (58, 1921131), (87, 1280754), (174, 640377), (261, 426918), (522, 213459), (783, 142306), (1566, 71153)]