1910920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:166

約数の個数: 64

約数和(自身を含む): 4847040

約数和(自身を除く): 2936120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 43, 44, 55, 86, 88, 101, 110, 172, 202, 215, 220, 344, 404, 430, 440, 473, 505, 808, 860, 946, 1010, 1111, 1720, 1892, 2020, 2222, 2365, 3784, 4040, 4343, 4444, 4730, 5555, 8686, 8888, 9460, 11110, 17372, 18920, 21715, 22220, 34744, 43430, 44440, 47773, 86860, 95546, 173720, 191092, 238865, 382184, 477730, 955460, 1910920]

約数ペア:

[(1, 1910920), (2, 955460), (4, 477730), (5, 382184), (8, 238865), (10, 191092), (11, 173720), (20, 95546), (22, 86860), (40, 47773), (43, 44440), (44, 43430), (55, 34744), (86, 22220), (88, 21715), (101, 18920), (110, 17372), (172, 11110), (202, 9460), (215, 8888), (220, 8686), (344, 5555), (404, 4730), (430, 4444), (440, 4343), (473, 4040), (505, 3784), (808, 2365), (860, 2222), (946, 2020), (1010, 1892), (1111, 1720)]