20567540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{1373}}^1$

素因数の和:1496

約数の個数: 48

約数和(自身を含む): 49859712

約数和(自身を除く): 29292172

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 107, 140, 214, 428, 535, 749, 1070, 1373, 1498, 2140, 2746, 2996, 3745, 5492, 6865, 7490, 9611, 13730, 14980, 19222, 27460, 38444, 48055, 96110, 146911, 192220, 293822, 587644, 734555, 1028377, 1469110, 2056754, 2938220, 4113508, 5141885, 10283770, 20567540]

約数ペア:

[(1, 20567540), (2, 10283770), (4, 5141885), (5, 4113508), (7, 2938220), (10, 2056754), (14, 1469110), (20, 1028377), (28, 734555), (35, 587644), (70, 293822), (107, 192220), (140, 146911), (214, 96110), (428, 48055), (535, 38444), (749, 27460), (1070, 19222), (1373, 14980), (1498, 13730), (2140, 9611), (2746, 7490), (2996, 6865), (3745, 5492)]