821089920

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{307}}^1$

素因数の和:535

約数の個数: 256

約数和(自身を含む): 3015936000

約数和(自身を除く): 2194846080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 199, 210, 224, 240, 280, 307, 320, 336, 384, 398, 420, 448, 480, 560, 597, 614, 640, 672, 796, 840, 896, 921, 960, 995, 1120, 1194, 1228, 1344, 1393, 1535, 1592, 1680, 1842, 1920, 1990, 2149, 2240, 2388, 2456, 2688, 2786, 2985, 3070, 3184, 3360, 3684, 3980, 4179, 4298, 4480, 4605, 4776, 4912, 5572, 5970, 6140, 6368, 6447, 6720, 6965, 7368, 7960, 8358, 8596, 9210, 9552, 9824, 10745, 11144, 11940, 12280, 12736, 12894, 13440, 13930, 14736, 15920, 16716, 17192, 18420, 19104, 19648, 20895, 21490, 22288, 23880, 24560, 25472, 25788, 27860, 29472, 31840, 32235, 33432, 34384, 36840, 38208, 39296, 41790, 42980, 44576, 47760, 49120, 51576, 55720, 58944, 61093, 63680, 64470, 66864, 68768, 73680, 76416, 83580, 85960, 89152, 95520, 98240, 103152, 111440, 117888, 122186, 127360, 128940, 133728, 137536, 147360, 167160, 171920, 178304, 183279, 191040, 196480, 206304, 222880, 244372, 257880, 267456, 275072, 294720, 305465, 334320, 343840, 366558, 382080, 412608, 427651, 445760, 488744, 515760, 534912, 589440, 610930, 668640, 687680, 733116, 825216, 855302, 891520, 916395, 977488, 1031520, 1221860, 1282953, 1337280, 1375360, 1466232, 1710604, 1832790, 1954976, 2063040, 2138255, 2443720, 2565906, 2674560, 2932464, 3421208, 3665580, 3909952, 4126080, 4276510, 4887440, 5131812, 5864928, 6414765, 6842416, 7331160, 7819904, 8553020, 9774880, 10263624, 11729856, 12829530, 13684832, 14662320, 17106040, 19549760, 20527248, 23459712, 25659060, 27369664, 29324640, 34212080, 39099520, 41054496, 51318120, 54739328, 58649280, 68424160, 82108992, 102636240, 117298560, 136848320, 164217984, 205272480, 273696640, 410544960, 821089920]

約数ペア:

[(1, 821089920), (2, 410544960), (3, 273696640), (4, 205272480), (5, 164217984), (6, 136848320), (7, 117298560), (8, 102636240), (10, 82108992), (12, 68424160), (14, 58649280), (15, 54739328), (16, 51318120), (20, 41054496), (21, 39099520), (24, 34212080), (28, 29324640), (30, 27369664), (32, 25659060), (35, 23459712), (40, 20527248), (42, 19549760), (48, 17106040), (56, 14662320), (60, 13684832), (64, 12829530), (70, 11729856), (80, 10263624), (84, 9774880), (96, 8553020), (105, 7819904), (112, 7331160), (120, 6842416), (128, 6414765), (140, 5864928), (160, 5131812), (168, 4887440), (192, 4276510), (199, 4126080), (210, 3909952), (224, 3665580), (240, 3421208), (280, 2932464), (307, 2674560), (320, 2565906), (336, 2443720), (384, 2138255), (398, 2063040), (420, 1954976), (448, 1832790), (480, 1710604), (560, 1466232), (597, 1375360), (614, 1337280), (640, 1282953), (672, 1221860), (796, 1031520), (840, 977488), (896, 916395), (921, 891520), (960, 855302), (995, 825216), (1120, 733116), (1194, 687680), (1228, 668640), (1344, 610930), (1393, 589440), (1535, 534912), (1592, 515760), (1680, 488744), (1842, 445760), (1920, 427651), (1990, 412608), (2149, 382080), (2240, 366558), (2388, 343840), (2456, 334320), (2688, 305465), (2786, 294720), (2985, 275072), (3070, 267456), (3184, 257880), (3360, 244372), (3684, 222880), (3980, 206304), (4179, 196480), (4298, 191040), (4480, 183279), (4605, 178304), (4776, 171920), (4912, 167160), (5572, 147360), (5970, 137536), (6140, 133728), (6368, 128940), (6447, 127360), (6720, 122186), (6965, 117888), (7368, 111440), (7960, 103152), (8358, 98240), (8596, 95520), (9210, 89152), (9552, 85960), (9824, 83580), (10745, 76416), (11144, 73680), (11940, 68768), (12280, 66864), (12736, 64470), (12894, 63680), (13440, 61093), (13930, 58944), (14736, 55720), (15920, 51576), (16716, 49120), (17192, 47760), (18420, 44576), (19104, 42980), (19648, 41790), (20895, 39296), (21490, 38208), (22288, 36840), (23880, 34384), (24560, 33432), (25472, 32235), (25788, 31840), (27860, 29472)]