20543012

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{127}}^1$

素因数の和:300

約数の個数: 48

約数和(自身を含む): 42577920

約数和(自身を除く): 22034908

約数列:

[1, 2, 4, 7, 14, 28, 53, 106, 109, 127, 212, 218, 254, 371, 436, 508, 742, 763, 889, 1484, 1526, 1778, 3052, 3556, 5777, 6731, 11554, 13462, 13843, 23108, 26924, 27686, 40439, 47117, 55372, 80878, 94234, 96901, 161756, 188468, 193802, 387604, 733679, 1467358, 2934716, 5135753, 10271506, 20543012]

約数ペア:

[(1, 20543012), (2, 10271506), (4, 5135753), (7, 2934716), (14, 1467358), (28, 733679), (53, 387604), (106, 193802), (109, 188468), (127, 161756), (212, 96901), (218, 94234), (254, 80878), (371, 55372), (436, 47117), (508, 40439), (742, 27686), (763, 26924), (889, 23108), (1484, 13843), (1526, 13462), (1778, 11554), (3052, 6731), (3556, 5777)]