1998984960

素因数分解:

$2^8\times 3^3\times 5^1\times 7^1\times {\mathrm{8263}}^1$

素因数の和:8300

約数の個数: 288

約数和(自身を含む): 8107975680

約数和(自身を除く): 6108990720

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, 64, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 128, 135, 140, 144, 160, 168, 180, 189, 192, 210, 216, 224, 240, 252, 256, 270, 280, 288, 315, 320, 336, 360, 378, 384, 420, 432, 448, 480, 504, 540, 560, 576, 630, 640, 672, 720, 756, 768, 840, 864, 896, 945, 960, 1008, 1080, 1120, 1152, 1260, 1280, 1344, 1440, 1512, 1680, 1728, 1792, 1890, 1920, 2016, 2160, 2240, 2304, 2520, 2688, 2880, 3024, 3360, 3456, 3780, 3840, 4032, 4320, 4480, 5040, 5376, 5760, 6048, 6720, 6912, 7560, 8064, 8263, 8640, 8960, 10080, 11520, 12096, 13440, 15120, 16128, 16526, 17280, 20160, 24192, 24789, 26880, 30240, 33052, 34560, 40320, 41315, 48384, 49578, 57841, 60480, 66104, 74367, 80640, 82630, 99156, 115682, 120960, 123945, 132208, 148734, 165260, 173523, 198312, 223101, 231364, 241920, 247890, 264416, 289205, 297468, 330520, 347046, 371835, 396624, 446202, 462728, 495780, 520569, 528832, 578410, 594936, 661040, 694092, 743670, 793248, 867615, 892404, 925456, 991560, 1041138, 1057664, 1115505, 1156820, 1189872, 1322080, 1388184, 1487340, 1561707, 1586496, 1735230, 1784808, 1850912, 1983120, 2082276, 2115328, 2231010, 2313640, 2379744, 2602845, 2644160, 2776368, 2974680, 3123414, 3172992, 3470460, 3569616, 3701824, 3966240, 4164552, 4462020, 4627280, 4759488, 5205690, 5288320, 5552736, 5949360, 6246828, 6345984, 6940920, 7139232, 7403648, 7808535, 7932480, 8329104, 8924040, 9254560, 9518976, 10411380, 10576640, 11105472, 11898720, 12493656, 13881840, 14278464, 14807296, 15617070, 15864960, 16658208, 17848080, 18509120, 19037952, 20822760, 22210944, 23797440, 24987312, 27763680, 28556928, 31234140, 31729920, 33316416, 35696160, 37018240, 41645520, 44421888, 47594880, 49974624, 55527360, 57113856, 62468280, 66632832, 71392320, 74036480, 83291040, 95189760, 99949248, 111054720, 124936560, 133265664, 142784640, 166582080, 199898496, 222109440, 249873120, 285569280, 333164160, 399796992, 499746240, 666328320, 999492480, 1998984960]

約数ペア:

[(1, 1998984960), (2, 999492480), (3, 666328320), (4, 499746240), (5, 399796992), (6, 333164160), (7, 285569280), (8, 249873120), (9, 222109440), (10, 199898496), (12, 166582080), (14, 142784640), (15, 133265664), (16, 124936560), (18, 111054720), (20, 99949248), (21, 95189760), (24, 83291040), (27, 74036480), (28, 71392320), (30, 66632832), (32, 62468280), (35, 57113856), (36, 55527360), (40, 49974624), (42, 47594880), (45, 44421888), (48, 41645520), (54, 37018240), (56, 35696160), (60, 33316416), (63, 31729920), (64, 31234140), (70, 28556928), (72, 27763680), (80, 24987312), (84, 23797440), (90, 22210944), (96, 20822760), (105, 19037952), (108, 18509120), (112, 17848080), (120, 16658208), (126, 15864960), (128, 15617070), (135, 14807296), (140, 14278464), (144, 13881840), (160, 12493656), (168, 11898720), (180, 11105472), (189, 10576640), (192, 10411380), (210, 9518976), (216, 9254560), (224, 8924040), (240, 8329104), (252, 7932480), (256, 7808535), (270, 7403648), (280, 7139232), (288, 6940920), (315, 6345984), (320, 6246828), (336, 5949360), (360, 5552736), (378, 5288320), (384, 5205690), (420, 4759488), (432, 4627280), (448, 4462020), (480, 4164552), (504, 3966240), (540, 3701824), (560, 3569616), (576, 3470460), (630, 3172992), (640, 3123414), (672, 2974680), (720, 2776368), (756, 2644160), (768, 2602845), (840, 2379744), (864, 2313640), (896, 2231010), (945, 2115328), (960, 2082276), (1008, 1983120), (1080, 1850912), (1120, 1784808), (1152, 1735230), (1260, 1586496), (1280, 1561707), (1344, 1487340), (1440, 1388184), (1512, 1322080), (1680, 1189872), (1728, 1156820), (1792, 1115505), (1890, 1057664), (1920, 1041138), (2016, 991560), (2160, 925456), (2240, 892404), (2304, 867615), (2520, 793248), (2688, 743670), (2880, 694092), (3024, 661040), (3360, 594936), (3456, 578410), (3780, 528832), (3840, 520569), (4032, 495780), (4320, 462728), (4480, 446202), (5040, 396624), (5376, 371835), (5760, 347046), (6048, 330520), (6720, 297468), (6912, 289205), (7560, 264416), (8064, 247890), (8263, 241920), (8640, 231364), (8960, 223101), (10080, 198312), (11520, 173523), (12096, 165260), (13440, 148734), (15120, 132208), (16128, 123945), (16526, 120960), (17280, 115682), (20160, 99156), (24192, 82630), (24789, 80640), (26880, 74367), (30240, 66104), (33052, 60480), (34560, 57841), (40320, 49578), (41315, 48384)]