81906584

素因数分解:

$2^3\times {\mathrm{73}}^1\times {\mathrm{139}}^1\times {\mathrm{1009}}^1$

素因数の和:1227

約数の個数: 32

約数和(自身を含む): 156954000

約数和(自身を除く): 75047416

約数列:

[1, 2, 4, 8, 73, 139, 146, 278, 292, 556, 584, 1009, 1112, 2018, 4036, 8072, 10147, 20294, 40588, 73657, 81176, 140251, 147314, 280502, 294628, 561004, 589256, 1122008, 10238323, 20476646, 40953292, 81906584]

約数ペア:

[(1, 81906584), (2, 40953292), (4, 20476646), (8, 10238323), (73, 1122008), (139, 589256), (146, 561004), (278, 294628), (292, 280502), (556, 147314), (584, 140251), (1009, 81176), (1112, 73657), (2018, 40588), (4036, 20294), (8072, 10147)]