20044845

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{181}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 36796032

約数和(自身を除く): 16751187

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 107, 115, 181, 207, 321, 345, 535, 543, 905, 963, 1035, 1605, 1629, 2461, 2715, 4163, 4815, 7383, 8145, 12305, 12489, 19367, 20815, 22149, 36915, 37467, 58101, 62445, 96835, 110745, 174303, 187335, 290505, 445441, 871515, 1336323, 2227205, 4008969, 6681615, 20044845]

約数ペア:

[(1, 20044845), (3, 6681615), (5, 4008969), (9, 2227205), (15, 1336323), (23, 871515), (45, 445441), (69, 290505), (107, 187335), (115, 174303), (181, 110745), (207, 96835), (321, 62445), (345, 58101), (535, 37467), (543, 36915), (905, 22149), (963, 20815), (1035, 19367), (1605, 12489), (1629, 12305), (2461, 8145), (2715, 7383), (4163, 4815)]