81235728

素因数分解:

$2^4\times 3^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{397}}^1$

素因数の和:454

約数の個数: 180

約数和(自身を含む): 274273740

約数和(自身を除く): 193038012

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 29, 36, 42, 48, 49, 56, 58, 63, 72, 84, 87, 98, 112, 116, 126, 144, 147, 168, 174, 196, 203, 232, 252, 261, 294, 336, 348, 392, 397, 406, 441, 464, 504, 522, 588, 609, 696, 784, 794, 812, 882, 1008, 1044, 1176, 1191, 1218, 1392, 1421, 1588, 1624, 1764, 1827, 2088, 2352, 2382, 2436, 2779, 2842, 3176, 3248, 3528, 3573, 3654, 4176, 4263, 4764, 4872, 5558, 5684, 6352, 7056, 7146, 7308, 8337, 8526, 9528, 9744, 11116, 11368, 11513, 12789, 14292, 14616, 16674, 17052, 19056, 19453, 22232, 22736, 23026, 25011, 25578, 28584, 29232, 33348, 34104, 34539, 38906, 44464, 46052, 50022, 51156, 57168, 58359, 66696, 68208, 69078, 77812, 80591, 92104, 100044, 102312, 103617, 116718, 133392, 138156, 155624, 161182, 175077, 184208, 200088, 204624, 207234, 233436, 241773, 276312, 311248, 322364, 350154, 400176, 414468, 466872, 483546, 552624, 564137, 644728, 700308, 725319, 828936, 933744, 967092, 1128274, 1289456, 1400616, 1450638, 1657872, 1692411, 1934184, 2256548, 2801232, 2901276, 3384822, 3868368, 4513096, 5077233, 5802552, 6769644, 9026192, 10154466, 11605104, 13539288, 20308932, 27078576, 40617864, 81235728]

約数ペア:

[(1, 81235728), (2, 40617864), (3, 27078576), (4, 20308932), (6, 13539288), (7, 11605104), (8, 10154466), (9, 9026192), (12, 6769644), (14, 5802552), (16, 5077233), (18, 4513096), (21, 3868368), (24, 3384822), (28, 2901276), (29, 2801232), (36, 2256548), (42, 1934184), (48, 1692411), (49, 1657872), (56, 1450638), (58, 1400616), (63, 1289456), (72, 1128274), (84, 967092), (87, 933744), (98, 828936), (112, 725319), (116, 700308), (126, 644728), (144, 564137), (147, 552624), (168, 483546), (174, 466872), (196, 414468), (203, 400176), (232, 350154), (252, 322364), (261, 311248), (294, 276312), (336, 241773), (348, 233436), (392, 207234), (397, 204624), (406, 200088), (441, 184208), (464, 175077), (504, 161182), (522, 155624), (588, 138156), (609, 133392), (696, 116718), (784, 103617), (794, 102312), (812, 100044), (882, 92104), (1008, 80591), (1044, 77812), (1176, 69078), (1191, 68208), (1218, 66696), (1392, 58359), (1421, 57168), (1588, 51156), (1624, 50022), (1764, 46052), (1827, 44464), (2088, 38906), (2352, 34539), (2382, 34104), (2436, 33348), (2779, 29232), (2842, 28584), (3176, 25578), (3248, 25011), (3528, 23026), (3573, 22736), (3654, 22232), (4176, 19453), (4263, 19056), (4764, 17052), (4872, 16674), (5558, 14616), (5684, 14292), (6352, 12789), (7056, 11513), (7146, 11368), (7308, 11116), (8337, 9744), (8526, 9528)]