28246356

素因数分解:

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

素因数の和:381

約数の個数: 72

約数和(自身を含む): 74378304

約数和(自身を除く): 46131948

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 71, 86, 129, 142, 172, 213, 257, 258, 284, 387, 426, 514, 516, 639, 771, 774, 852, 1028, 1278, 1542, 1548, 2313, 2556, 3053, 3084, 4626, 6106, 9159, 9252, 11051, 12212, 18247, 18318, 22102, 27477, 33153, 36494, 36636, 44204, 54741, 54954, 66306, 72988, 99459, 109482, 109908, 132612, 164223, 198918, 218964, 328446, 397836, 656892, 784621, 1569242, 2353863, 3138484, 4707726, 7061589, 9415452, 14123178, 28246356]

約数ペア:

[(1, 28246356), (2, 14123178), (3, 9415452), (4, 7061589), (6, 4707726), (9, 3138484), (12, 2353863), (18, 1569242), (36, 784621), (43, 656892), (71, 397836), (86, 328446), (129, 218964), (142, 198918), (172, 164223), (213, 132612), (257, 109908), (258, 109482), (284, 99459), (387, 72988), (426, 66306), (514, 54954), (516, 54741), (639, 44204), (771, 36636), (774, 36494), (852, 33153), (1028, 27477), (1278, 22102), (1542, 18318), (1548, 18247), (2313, 12212), (2556, 11051), (3053, 9252), (3084, 9159), (4626, 6106)]