18830904

素因数分解:

$2^3\times 3^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{257}}^1$

素因数の和:380

約数の個数: 64

約数和(自身を含む): 49040640

約数和(自身を除く): 30209736

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 43, 71, 86, 129, 142, 172, 213, 257, 258, 284, 344, 426, 514, 516, 568, 771, 852, 1028, 1032, 1542, 1704, 2056, 3053, 3084, 6106, 6168, 9159, 11051, 12212, 18247, 18318, 22102, 24424, 33153, 36494, 36636, 44204, 54741, 66306, 72988, 73272, 88408, 109482, 132612, 145976, 218964, 265224, 437928, 784621, 1569242, 2353863, 3138484, 4707726, 6276968, 9415452, 18830904]

約数ペア:

[(1, 18830904), (2, 9415452), (3, 6276968), (4, 4707726), (6, 3138484), (8, 2353863), (12, 1569242), (24, 784621), (43, 437928), (71, 265224), (86, 218964), (129, 145976), (142, 132612), (172, 109482), (213, 88408), (257, 73272), (258, 72988), (284, 66306), (344, 54741), (426, 44204), (514, 36636), (516, 36494), (568, 33153), (771, 24424), (852, 22102), (1028, 18318), (1032, 18247), (1542, 12212), (1704, 11051), (2056, 9159), (3053, 6168), (3084, 6106)]