20799.000000

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1031}}^1$

素因数の和:1055

約数の個数: 40

約数和(自身を含む): 2303424

約数和(自身を除く): 1396144

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 1031, 2062, 4124, 5155, 8248, 10310, 11341, 16496, 20620, 22682, 41240, 45364, 56705, 82480, 90728, 113410, 181456, 226820, 453640, 907280]

約数ペア:

[(1, 907280), (2, 453640), (4, 226820), (5, 181456), (8, 113410), (10, 90728), (11, 82480), (16, 56705), (20, 45364), (22, 41240), (40, 22682), (44, 20620), (55, 16496), (80, 11341), (88, 10310), (110, 8248), (176, 5155), (220, 4124), (440, 2062), (880, 1031)]