51216440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2707}}^1$

素因数の和:2772

約数の個数: 64

約数和(自身を含む): 128684160

約数和(自身を除く): 77467720

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, 860, 946, 1720, 1892, 2365, 2707, 3784, 4730, 5414, 9460, 10828, 13535, 18920, 21656, 27070, 29777, 54140, 59554, 108280, 116401, 119108, 148885, 232802, 238216, 297770, 465604, 582005, 595540, 931208, 1164010, 1191080, 1280411, 2328020, 2560822, 4656040, 5121644, 6402055, 10243288, 12804110, 25608220, 51216440]

約数ペア:

[(1, 51216440), (2, 25608220), (4, 12804110), (5, 10243288), (8, 6402055), (10, 5121644), (11, 4656040), (20, 2560822), (22, 2328020), (40, 1280411), (43, 1191080), (44, 1164010), (55, 931208), (86, 595540), (88, 582005), (110, 465604), (172, 297770), (215, 238216), (220, 232802), (344, 148885), (430, 119108), (440, 116401), (473, 108280), (860, 59554), (946, 54140), (1720, 29777), (1892, 27070), (2365, 21656), (2707, 18920), (3784, 13535), (4730, 10828), (5414, 9460)]