1290481640

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{317}}^1$

素因数の和:440

約数の個数: 192

約数和(自身を含む): 3549795840

約数和(自身を除く): 2259314200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 49, 56, 62, 67, 70, 98, 124, 134, 140, 155, 196, 217, 245, 248, 268, 280, 310, 317, 335, 392, 434, 469, 490, 536, 620, 634, 670, 868, 938, 980, 1085, 1240, 1268, 1340, 1519, 1585, 1736, 1876, 1960, 2077, 2170, 2219, 2345, 2536, 2680, 3038, 3170, 3283, 3752, 4154, 4340, 4438, 4690, 6076, 6340, 6566, 7595, 8308, 8680, 8876, 9380, 9827, 10385, 11095, 12152, 12680, 13132, 14539, 15190, 15533, 16415, 16616, 17752, 18760, 19654, 20770, 21239, 22190, 26264, 29078, 30380, 31066, 32830, 39308, 41540, 42478, 44380, 49135, 58156, 60760, 62132, 65660, 68789, 72695, 77665, 78616, 83080, 84956, 88760, 98270, 101773, 106195, 116312, 124264, 131320, 137578, 145390, 148673, 155330, 169912, 196540, 203546, 212390, 275156, 290780, 297346, 310660, 343945, 393080, 407092, 424780, 481523, 508865, 550312, 581560, 594692, 621320, 658409, 687890, 743365, 814184, 849560, 963046, 1017730, 1040711, 1189384, 1316818, 1375780, 1486730, 1926092, 2035460, 2081422, 2407615, 2633636, 2751560, 2973460, 3292045, 3852184, 4070920, 4162844, 4608863, 4815230, 5203555, 5267272, 5946920, 6584090, 8325688, 9217726, 9630460, 10407110, 13168180, 18435452, 19260920, 20814220, 23044315, 26336360, 32262041, 36870904, 41628440, 46088630, 64524082, 92177260, 129048164, 161310205, 184354520, 258096328, 322620410, 645240820, 1290481640]

約数ペア:

[(1, 1290481640), (2, 645240820), (4, 322620410), (5, 258096328), (7, 184354520), (8, 161310205), (10, 129048164), (14, 92177260), (20, 64524082), (28, 46088630), (31, 41628440), (35, 36870904), (40, 32262041), (49, 26336360), (56, 23044315), (62, 20814220), (67, 19260920), (70, 18435452), (98, 13168180), (124, 10407110), (134, 9630460), (140, 9217726), (155, 8325688), (196, 6584090), (217, 5946920), (245, 5267272), (248, 5203555), (268, 4815230), (280, 4608863), (310, 4162844), (317, 4070920), (335, 3852184), (392, 3292045), (434, 2973460), (469, 2751560), (490, 2633636), (536, 2407615), (620, 2081422), (634, 2035460), (670, 1926092), (868, 1486730), (938, 1375780), (980, 1316818), (1085, 1189384), (1240, 1040711), (1268, 1017730), (1340, 963046), (1519, 849560), (1585, 814184), (1736, 743365), (1876, 687890), (1960, 658409), (2077, 621320), (2170, 594692), (2219, 581560), (2345, 550312), (2536, 508865), (2680, 481523), (3038, 424780), (3170, 407092), (3283, 393080), (3752, 343945), (4154, 310660), (4340, 297346), (4438, 290780), (4690, 275156), (6076, 212390), (6340, 203546), (6566, 196540), (7595, 169912), (8308, 155330), (8680, 148673), (8876, 145390), (9380, 137578), (9827, 131320), (10385, 124264), (11095, 116312), (12152, 106195), (12680, 101773), (13132, 98270), (14539, 88760), (15190, 84956), (15533, 83080), (16415, 78616), (16616, 77665), (17752, 72695), (18760, 68789), (19654, 65660), (20770, 62132), (21239, 60760), (22190, 58156), (26264, 49135), (29078, 44380), (30380, 42478), (31066, 41540), (32830, 39308)]