680876560

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{431}}^1$

素因数の和:502

約数の個数: 240

約数和(自身を含む): 2051868672

約数和(自身を除く): 1370992112

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 31, 35, 40, 49, 52, 56, 62, 65, 70, 80, 91, 98, 104, 112, 124, 130, 140, 155, 182, 196, 208, 217, 245, 248, 260, 280, 310, 364, 392, 403, 431, 434, 455, 490, 496, 520, 560, 620, 637, 728, 784, 806, 862, 868, 910, 980, 1040, 1085, 1240, 1274, 1456, 1519, 1612, 1724, 1736, 1820, 1960, 2015, 2155, 2170, 2480, 2548, 2821, 3017, 3038, 3185, 3224, 3448, 3472, 3640, 3920, 4030, 4310, 4340, 5096, 5603, 5642, 6034, 6076, 6370, 6448, 6896, 7280, 7595, 8060, 8620, 8680, 10192, 11206, 11284, 12068, 12152, 12740, 13361, 14105, 15085, 15190, 16120, 17240, 17360, 19747, 21119, 22412, 22568, 24136, 24304, 25480, 26722, 28015, 28210, 30170, 30380, 32240, 34480, 39221, 39494, 42238, 44824, 45136, 48272, 50960, 53444, 56030, 56420, 60340, 60760, 66805, 78442, 78988, 84476, 89648, 93527, 98735, 105595, 106888, 112060, 112840, 120680, 121520, 133610, 156884, 157976, 168952, 173693, 187054, 196105, 197470, 211190, 213776, 224120, 225680, 241360, 267220, 274547, 313768, 315952, 337904, 347386, 374108, 392210, 394940, 422380, 448240, 467635, 534440, 549094, 627536, 654689, 694772, 748216, 784420, 789880, 844760, 868465, 935270, 1068880, 1098188, 1215851, 1309378, 1372735, 1389544, 1496432, 1568840, 1579760, 1689520, 1736930, 1870540, 2196376, 2431702, 2618756, 2745470, 2779088, 3137680, 3273445, 3473860, 3741080, 4392752, 4863404, 5237512, 5490940, 6079255, 6546890, 6947720, 7482160, 8510957, 9726808, 10475024, 10981880, 12158510, 13093780, 13895440, 17021914, 19453616, 21963760, 24317020, 26187560, 34043828, 42554785, 48634040, 52375120, 68087656, 85109570, 97268080, 136175312, 170219140, 340438280, 680876560]

約数ペア:

[(1, 680876560), (2, 340438280), (4, 170219140), (5, 136175312), (7, 97268080), (8, 85109570), (10, 68087656), (13, 52375120), (14, 48634040), (16, 42554785), (20, 34043828), (26, 26187560), (28, 24317020), (31, 21963760), (35, 19453616), (40, 17021914), (49, 13895440), (52, 13093780), (56, 12158510), (62, 10981880), (65, 10475024), (70, 9726808), (80, 8510957), (91, 7482160), (98, 6947720), (104, 6546890), (112, 6079255), (124, 5490940), (130, 5237512), (140, 4863404), (155, 4392752), (182, 3741080), (196, 3473860), (208, 3273445), (217, 3137680), (245, 2779088), (248, 2745470), (260, 2618756), (280, 2431702), (310, 2196376), (364, 1870540), (392, 1736930), (403, 1689520), (431, 1579760), (434, 1568840), (455, 1496432), (490, 1389544), (496, 1372735), (520, 1309378), (560, 1215851), (620, 1098188), (637, 1068880), (728, 935270), (784, 868465), (806, 844760), (862, 789880), (868, 784420), (910, 748216), (980, 694772), (1040, 654689), (1085, 627536), (1240, 549094), (1274, 534440), (1456, 467635), (1519, 448240), (1612, 422380), (1724, 394940), (1736, 392210), (1820, 374108), (1960, 347386), (2015, 337904), (2155, 315952), (2170, 313768), (2480, 274547), (2548, 267220), (2821, 241360), (3017, 225680), (3038, 224120), (3185, 213776), (3224, 211190), (3448, 197470), (3472, 196105), (3640, 187054), (3920, 173693), (4030, 168952), (4310, 157976), (4340, 156884), (5096, 133610), (5603, 121520), (5642, 120680), (6034, 112840), (6076, 112060), (6370, 106888), (6448, 105595), (6896, 98735), (7280, 93527), (7595, 89648), (8060, 84476), (8620, 78988), (8680, 78442), (10192, 66805), (11206, 60760), (11284, 60340), (12068, 56420), (12152, 56030), (12740, 53444), (13361, 50960), (14105, 48272), (15085, 45136), (15190, 44824), (16120, 42238), (17240, 39494), (17360, 39221), (19747, 34480), (21119, 32240), (22412, 30380), (22568, 30170), (24136, 28210), (24304, 28015), (25480, 26722)]