256216532

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{947}}^1$

素因数の和:1029

約数の個数: 72

約数和(自身を含む): 543674208

約数和(自身を除く): 287457676

約数列:

[1, 2, 4, 11, 13, 22, 26, 43, 44, 52, 86, 121, 143, 172, 242, 286, 473, 484, 559, 572, 946, 947, 1118, 1573, 1892, 1894, 2236, 3146, 3788, 5203, 6149, 6292, 10406, 10417, 12298, 12311, 20812, 20834, 24596, 24622, 40721, 41668, 49244, 67639, 81442, 114587, 135278, 135421, 162884, 229174, 270556, 270842, 447931, 458348, 529373, 541684, 895862, 1058746, 1489631, 1791724, 2117492, 2979262, 4927241, 5823103, 5958524, 9854482, 11646206, 19708964, 23292412, 64054133, 128108266, 256216532]

約数ペア:

[(1, 256216532), (2, 128108266), (4, 64054133), (11, 23292412), (13, 19708964), (22, 11646206), (26, 9854482), (43, 5958524), (44, 5823103), (52, 4927241), (86, 2979262), (121, 2117492), (143, 1791724), (172, 1489631), (242, 1058746), (286, 895862), (473, 541684), (484, 529373), (559, 458348), (572, 447931), (946, 270842), (947, 270556), (1118, 229174), (1573, 162884), (1892, 135421), (1894, 135278), (2236, 114587), (3146, 81442), (3788, 67639), (5203, 49244), (6149, 41668), (6292, 40721), (10406, 24622), (10417, 24596), (12298, 20834), (12311, 20812)]