12808840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{677}}^1$

素因数の和:742

約数の個数: 64

約数和(自身を含む): 32218560

約数和(自身を除く): 19409720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 86, 88, 110, 172, 215, 220, 344, 430, 440, 473, 677, 860, 946, 1354, 1720, 1892, 2365, 2708, 3385, 3784, 4730, 5416, 6770, 7447, 9460, 13540, 14894, 18920, 27080, 29111, 29788, 37235, 58222, 59576, 74470, 116444, 145555, 148940, 232888, 291110, 297880, 320221, 582220, 640442, 1164440, 1280884, 1601105, 2561768, 3202210, 6404420, 12808840]

約数ペア:

[(1, 12808840), (2, 6404420), (4, 3202210), (5, 2561768), (8, 1601105), (10, 1280884), (11, 1164440), (20, 640442), (22, 582220), (40, 320221), (43, 297880), (44, 291110), (55, 232888), (86, 148940), (88, 145555), (110, 116444), (172, 74470), (215, 59576), (220, 58222), (344, 37235), (430, 29788), (440, 29111), (473, 27080), (677, 18920), (860, 14894), (946, 13540), (1354, 9460), (1720, 7447), (1892, 6770), (2365, 5416), (2708, 4730), (3385, 3784)]