281605744

素因数分解:

$2^4\times 7^3\times {\mathrm{23}}^2\times {\mathrm{97}}^1$

素因数の和:172

約数の個数: 120

約数和(自身を含む): 672005600

約数和(自身を除く): 390399856

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 49, 56, 92, 97, 98, 112, 161, 184, 194, 196, 322, 343, 368, 388, 392, 529, 644, 679, 686, 776, 784, 1058, 1127, 1288, 1358, 1372, 1552, 2116, 2231, 2254, 2576, 2716, 2744, 3703, 4232, 4462, 4508, 4753, 5432, 5488, 7406, 7889, 8464, 8924, 9016, 9506, 10864, 14812, 15617, 15778, 17848, 18032, 19012, 25921, 29624, 31234, 31556, 33271, 35696, 38024, 51313, 51842, 59248, 62468, 63112, 66542, 76048, 102626, 103684, 109319, 124936, 126224, 133084, 181447, 205252, 207368, 218638, 249872, 266168, 359191, 362894, 410504, 414736, 437276, 532336, 718382, 725788, 765233, 821008, 874552, 1436764, 1451576, 1530466, 1749104, 2514337, 2873528, 2903152, 3060932, 5028674, 5747056, 6121864, 10057348, 12243728, 17600359, 20114696, 35200718, 40229392, 70401436, 140802872, 281605744]

約数ペア:

[(1, 281605744), (2, 140802872), (4, 70401436), (7, 40229392), (8, 35200718), (14, 20114696), (16, 17600359), (23, 12243728), (28, 10057348), (46, 6121864), (49, 5747056), (56, 5028674), (92, 3060932), (97, 2903152), (98, 2873528), (112, 2514337), (161, 1749104), (184, 1530466), (194, 1451576), (196, 1436764), (322, 874552), (343, 821008), (368, 765233), (388, 725788), (392, 718382), (529, 532336), (644, 437276), (679, 414736), (686, 410504), (776, 362894), (784, 359191), (1058, 266168), (1127, 249872), (1288, 218638), (1358, 207368), (1372, 205252), (1552, 181447), (2116, 133084), (2231, 126224), (2254, 124936), (2576, 109319), (2716, 103684), (2744, 102626), (3703, 76048), (4232, 66542), (4462, 63112), (4508, 62468), (4753, 59248), (5432, 51842), (5488, 51313), (7406, 38024), (7889, 35696), (8464, 33271), (8924, 31556), (9016, 31234), (9506, 29624), (10864, 25921), (14812, 19012), (15617, 18032), (15778, 17848)]