28070334

素因数分解:

$2^1\times 3^3\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{251}}^1$

素因数の和:390

約数の個数: 64

約数和(自身を含む): 66528000

約数和(自身を除く): 38457666

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 109, 114, 171, 218, 251, 327, 342, 502, 513, 654, 753, 981, 1026, 1506, 1962, 2071, 2259, 2943, 4142, 4518, 4769, 5886, 6213, 6777, 9538, 12426, 13554, 14307, 18639, 27359, 28614, 37278, 42921, 54718, 55917, 82077, 85842, 111834, 128763, 164154, 246231, 257526, 492462, 519821, 738693, 1039642, 1477386, 1559463, 3118926, 4678389, 9356778, 14035167, 28070334]

約数ペア:

[(1, 28070334), (2, 14035167), (3, 9356778), (6, 4678389), (9, 3118926), (18, 1559463), (19, 1477386), (27, 1039642), (38, 738693), (54, 519821), (57, 492462), (109, 257526), (114, 246231), (171, 164154), (218, 128763), (251, 111834), (327, 85842), (342, 82077), (502, 55917), (513, 54718), (654, 42921), (753, 37278), (981, 28614), (1026, 27359), (1506, 18639), (1962, 14307), (2071, 13554), (2259, 12426), (2943, 9538), (4142, 6777), (4518, 6213), (4769, 5886)]