290389288

素因数分解:

$2^3\times 7^3\times {\mathrm{97}}^1\times {\mathrm{1091}}^1$

素因数の和:1215

約数の個数: 64

約数和(自身を含む): 642096000

約数和(自身を除く): 351706712

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 97, 98, 194, 196, 343, 388, 392, 679, 686, 776, 1091, 1358, 1372, 2182, 2716, 2744, 4364, 4753, 5432, 7637, 8728, 9506, 15274, 19012, 30548, 33271, 38024, 53459, 61096, 66542, 105827, 106918, 133084, 211654, 213836, 266168, 374213, 423308, 427672, 740789, 748426, 846616, 1481578, 1496852, 2963156, 2993704, 5185523, 5926312, 10371046, 20742092, 36298661, 41484184, 72597322, 145194644, 290389288]

約数ペア:

[(1, 290389288), (2, 145194644), (4, 72597322), (7, 41484184), (8, 36298661), (14, 20742092), (28, 10371046), (49, 5926312), (56, 5185523), (97, 2993704), (98, 2963156), (194, 1496852), (196, 1481578), (343, 846616), (388, 748426), (392, 740789), (679, 427672), (686, 423308), (776, 374213), (1091, 266168), (1358, 213836), (1372, 211654), (2182, 133084), (2716, 106918), (2744, 105827), (4364, 66542), (4753, 61096), (5432, 53459), (7637, 38024), (8728, 33271), (9506, 30548), (15274, 19012)]