686007680

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{487}}^1$

素因数の和:608

約数の個数: 128

約数和(自身を含む): 1720258560

約数和(自身を除く): 1034250880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 71, 80, 124, 128, 142, 155, 160, 248, 284, 310, 320, 355, 487, 496, 568, 620, 640, 710, 974, 992, 1136, 1240, 1420, 1948, 1984, 2201, 2272, 2435, 2480, 2840, 3896, 3968, 4402, 4544, 4870, 4960, 5680, 7792, 8804, 9088, 9740, 9920, 11005, 11360, 15097, 15584, 17608, 19480, 19840, 22010, 22720, 30194, 31168, 34577, 35216, 38960, 44020, 45440, 60388, 62336, 69154, 70432, 75485, 77920, 88040, 120776, 138308, 140864, 150970, 155840, 172885, 176080, 241552, 276616, 281728, 301940, 311680, 345770, 352160, 483104, 553232, 603880, 691540, 704320, 966208, 1071887, 1106464, 1207760, 1383080, 1408640, 1932416, 2143774, 2212928, 2415520, 2766160, 4287548, 4425856, 4831040, 5359435, 5532320, 8575096, 9662080, 10718870, 11064640, 17150192, 21437740, 22129280, 34300384, 42875480, 68600768, 85750960, 137201536, 171501920, 343003840, 686007680]

約数ペア:

[(1, 686007680), (2, 343003840), (4, 171501920), (5, 137201536), (8, 85750960), (10, 68600768), (16, 42875480), (20, 34300384), (31, 22129280), (32, 21437740), (40, 17150192), (62, 11064640), (64, 10718870), (71, 9662080), (80, 8575096), (124, 5532320), (128, 5359435), (142, 4831040), (155, 4425856), (160, 4287548), (248, 2766160), (284, 2415520), (310, 2212928), (320, 2143774), (355, 1932416), (487, 1408640), (496, 1383080), (568, 1207760), (620, 1106464), (640, 1071887), (710, 966208), (974, 704320), (992, 691540), (1136, 603880), (1240, 553232), (1420, 483104), (1948, 352160), (1984, 345770), (2201, 311680), (2272, 301940), (2435, 281728), (2480, 276616), (2840, 241552), (3896, 176080), (3968, 172885), (4402, 155840), (4544, 150970), (4870, 140864), (4960, 138308), (5680, 120776), (7792, 88040), (8804, 77920), (9088, 75485), (9740, 70432), (9920, 69154), (11005, 62336), (11360, 60388), (15097, 45440), (15584, 44020), (17608, 38960), (19480, 35216), (19840, 34577), (22010, 31168), (22720, 30194)]