1977907680

素因数分解:

$2^5\times 3^3\times 5^1\times 7^1\times {\mathrm{65407}}^1$

素因数の和:65438

約数の個数: 192

約数和(自身を含む): 7911751680

約数和(自身を除く): 5933844000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 160, 168, 180, 189, 210, 216, 224, 240, 252, 270, 280, 288, 315, 336, 360, 378, 420, 432, 480, 504, 540, 560, 630, 672, 720, 756, 840, 864, 945, 1008, 1080, 1120, 1260, 1440, 1512, 1680, 1890, 2016, 2160, 2520, 3024, 3360, 3780, 4320, 5040, 6048, 7560, 10080, 15120, 30240, 65407, 130814, 196221, 261628, 327035, 392442, 457849, 523256, 588663, 654070, 784884, 915698, 981105, 1046512, 1177326, 1308140, 1373547, 1569768, 1765989, 1831396, 1962210, 2093024, 2289245, 2354652, 2616280, 2747094, 2943315, 3139536, 3531978, 3662792, 3924420, 4120641, 4578490, 4709304, 5232560, 5494188, 5886630, 6279072, 6867735, 7063956, 7325584, 7848840, 8241282, 8829945, 9156980, 9418608, 10465120, 10988376, 11773260, 12361923, 13735470, 14127912, 14651168, 15697680, 16482564, 17659890, 18313960, 18837216, 20603205, 21976752, 23546520, 24723846, 27470940, 28255824, 31395360, 32965128, 35319780, 36627920, 41206410, 43953504, 47093040, 49447692, 54941880, 56511648, 61809615, 65930256, 70639560, 73255840, 82412820, 94186080, 98895384, 109883760, 123619230, 131860512, 141279120, 164825640, 197790768, 219767520, 247238460, 282558240, 329651280, 395581536, 494476920, 659302560, 988953840, 1977907680]

約数ペア:

[(1, 1977907680), (2, 988953840), (3, 659302560), (4, 494476920), (5, 395581536), (6, 329651280), (7, 282558240), (8, 247238460), (9, 219767520), (10, 197790768), (12, 164825640), (14, 141279120), (15, 131860512), (16, 123619230), (18, 109883760), (20, 98895384), (21, 94186080), (24, 82412820), (27, 73255840), (28, 70639560), (30, 65930256), (32, 61809615), (35, 56511648), (36, 54941880), (40, 49447692), (42, 47093040), (45, 43953504), (48, 41206410), (54, 36627920), (56, 35319780), (60, 32965128), (63, 31395360), (70, 28255824), (72, 27470940), (80, 24723846), (84, 23546520), (90, 21976752), (96, 20603205), (105, 18837216), (108, 18313960), (112, 17659890), (120, 16482564), (126, 15697680), (135, 14651168), (140, 14127912), (144, 13735470), (160, 12361923), (168, 11773260), (180, 10988376), (189, 10465120), (210, 9418608), (216, 9156980), (224, 8829945), (240, 8241282), (252, 7848840), (270, 7325584), (280, 7063956), (288, 6867735), (315, 6279072), (336, 5886630), (360, 5494188), (378, 5232560), (420, 4709304), (432, 4578490), (480, 4120641), (504, 3924420), (540, 3662792), (560, 3531978), (630, 3139536), (672, 2943315), (720, 2747094), (756, 2616280), (840, 2354652), (864, 2289245), (945, 2093024), (1008, 1962210), (1080, 1831396), (1120, 1765989), (1260, 1569768), (1440, 1373547), (1512, 1308140), (1680, 1177326), (1890, 1046512), (2016, 981105), (2160, 915698), (2520, 784884), (3024, 654070), (3360, 588663), (3780, 523256), (4320, 457849), (5040, 392442), (6048, 327035), (7560, 261628), (10080, 196221), (15120, 130814), (30240, 65407)]