28196080

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{179}}^2$

素因数の和:382

約数の個数: 60

約数和(自身を含む): 71917272

約数和(自身を除く): 43721192

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 179, 220, 358, 440, 716, 880, 895, 1432, 1790, 1969, 2864, 3580, 3938, 7160, 7876, 9845, 14320, 15752, 19690, 31504, 32041, 39380, 64082, 78760, 128164, 157520, 160205, 256328, 320410, 352451, 512656, 640820, 704902, 1281640, 1409804, 1762255, 2563280, 2819608, 3524510, 5639216, 7049020, 14098040, 28196080]

約数ペア:

[(1, 28196080), (2, 14098040), (4, 7049020), (5, 5639216), (8, 3524510), (10, 2819608), (11, 2563280), (16, 1762255), (20, 1409804), (22, 1281640), (40, 704902), (44, 640820), (55, 512656), (80, 352451), (88, 320410), (110, 256328), (176, 160205), (179, 157520), (220, 128164), (358, 78760), (440, 64082), (716, 39380), (880, 32041), (895, 31504), (1432, 19690), (1790, 15752), (1969, 14320), (2864, 9845), (3580, 7876), (3938, 7160)]