278821116

素因数分解:

$2^2\times 3^5\times 7^1\times {\mathrm{43}}^1\times {\mathrm{953}}^1$

素因数の和:1022

約数の個数: 144

約数和(自身を含む): 855638784

約数和(自身を除く): 576817668

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 43, 54, 63, 81, 84, 86, 108, 126, 129, 162, 172, 189, 243, 252, 258, 301, 324, 378, 387, 486, 516, 567, 602, 756, 774, 903, 953, 972, 1134, 1161, 1204, 1548, 1701, 1806, 1906, 2268, 2322, 2709, 2859, 3402, 3483, 3612, 3812, 4644, 5418, 5718, 6671, 6804, 6966, 8127, 8577, 10449, 10836, 11436, 13342, 13932, 16254, 17154, 20013, 20898, 24381, 25731, 26684, 32508, 34308, 40026, 40979, 41796, 48762, 51462, 60039, 73143, 77193, 80052, 81958, 97524, 102924, 120078, 122937, 146286, 154386, 163916, 180117, 231579, 240156, 245874, 286853, 292572, 308772, 360234, 368811, 463158, 491748, 540351, 573706, 720468, 737622, 860559, 926316, 1080702, 1106433, 1147412, 1475244, 1621053, 1721118, 2161404, 2212866, 2581677, 3242106, 3319299, 3442236, 4425732, 5163354, 6484212, 6638598, 7745031, 9957897, 10326708, 13277196, 15490062, 19915794, 23235093, 30980124, 39831588, 46470186, 69705279, 92940372, 139410558, 278821116]

約数ペア:

[(1, 278821116), (2, 139410558), (3, 92940372), (4, 69705279), (6, 46470186), (7, 39831588), (9, 30980124), (12, 23235093), (14, 19915794), (18, 15490062), (21, 13277196), (27, 10326708), (28, 9957897), (36, 7745031), (42, 6638598), (43, 6484212), (54, 5163354), (63, 4425732), (81, 3442236), (84, 3319299), (86, 3242106), (108, 2581677), (126, 2212866), (129, 2161404), (162, 1721118), (172, 1621053), (189, 1475244), (243, 1147412), (252, 1106433), (258, 1080702), (301, 926316), (324, 860559), (378, 737622), (387, 720468), (486, 573706), (516, 540351), (567, 491748), (602, 463158), (756, 368811), (774, 360234), (903, 308772), (953, 292572), (972, 286853), (1134, 245874), (1161, 240156), (1204, 231579), (1548, 180117), (1701, 163916), (1806, 154386), (1906, 146286), (2268, 122937), (2322, 120078), (2709, 102924), (2859, 97524), (3402, 81958), (3483, 80052), (3612, 77193), (3812, 73143), (4644, 60039), (5418, 51462), (5718, 48762), (6671, 41796), (6804, 40979), (6966, 40026), (8127, 34308), (8577, 32508), (10449, 26684), (10836, 25731), (11436, 24381), (13342, 20898), (13932, 20013), (16254, 17154)]