25617680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{677}}^1$

素因数の和:744

約数の個数: 80

約数和(自身を含む): 66585024

約数和(自身を除く): 40967344

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 43, 44, 55, 80, 86, 88, 110, 172, 176, 215, 220, 344, 430, 440, 473, 677, 688, 860, 880, 946, 1354, 1720, 1892, 2365, 2708, 3385, 3440, 3784, 4730, 5416, 6770, 7447, 7568, 9460, 10832, 13540, 14894, 18920, 27080, 29111, 29788, 37235, 37840, 54160, 58222, 59576, 74470, 116444, 119152, 145555, 148940, 232888, 291110, 297880, 320221, 465776, 582220, 595760, 640442, 1164440, 1280884, 1601105, 2328880, 2561768, 3202210, 5123536, 6404420, 12808840, 25617680]

約数ペア:

[(1, 25617680), (2, 12808840), (4, 6404420), (5, 5123536), (8, 3202210), (10, 2561768), (11, 2328880), (16, 1601105), (20, 1280884), (22, 1164440), (40, 640442), (43, 595760), (44, 582220), (55, 465776), (80, 320221), (86, 297880), (88, 291110), (110, 232888), (172, 148940), (176, 145555), (215, 119152), (220, 116444), (344, 74470), (430, 59576), (440, 58222), (473, 54160), (677, 37840), (688, 37235), (860, 29788), (880, 29111), (946, 27080), (1354, 18920), (1720, 14894), (1892, 13540), (2365, 10832), (2708, 9460), (3385, 7568), (3440, 7447), (3784, 6770), (4730, 5416)]