127955960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{6763}}^1$

素因数の和:6828

約数の個数: 64

約数和(自身を含む): 321425280

約数和(自身を除く): 193469320

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, 3784, 4730, 6763, 9460, 13526, 18920, 27052, 33815, 54104, 67630, 74393, 135260, 148786, 270520, 290809, 297572, 371965, 581618, 595144, 743930, 1163236, 1454045, 1487860, 2326472, 2908090, 2975720, 3198899, 5816180, 6397798, 11632360, 12795596, 15994495, 25591192, 31988990, 63977980, 127955960]

約数ペア:

[(1, 127955960), (2, 63977980), (4, 31988990), (5, 25591192), (8, 15994495), (10, 12795596), (11, 11632360), (20, 6397798), (22, 5816180), (40, 3198899), (43, 2975720), (44, 2908090), (55, 2326472), (86, 1487860), (88, 1454045), (110, 1163236), (172, 743930), (215, 595144), (220, 581618), (344, 371965), (430, 297572), (440, 290809), (473, 270520), (860, 148786), (946, 135260), (1720, 74393), (1892, 67630), (2365, 54104), (3784, 33815), (4730, 27052), (6763, 18920), (9460, 13526)]