640519488

素因数分解:

$2^6\times 3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{929}}^1$

素因数の和:979

約数の個数: 280

約数和(自身を含む): 2286609600

約数和(自身を除く): 1646090112

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 19, 21, 24, 27, 28, 32, 36, 38, 42, 48, 54, 56, 57, 63, 64, 72, 76, 81, 84, 96, 108, 112, 114, 126, 133, 144, 152, 162, 168, 171, 189, 192, 216, 224, 228, 252, 266, 288, 304, 324, 336, 342, 378, 399, 432, 448, 456, 504, 513, 532, 567, 576, 608, 648, 672, 684, 756, 798, 864, 912, 929, 1008, 1026, 1064, 1134, 1197, 1216, 1296, 1344, 1368, 1512, 1539, 1596, 1728, 1824, 1858, 2016, 2052, 2128, 2268, 2394, 2592, 2736, 2787, 3024, 3078, 3192, 3591, 3648, 3716, 4032, 4104, 4256, 4536, 4788, 5184, 5472, 5574, 6048, 6156, 6384, 6503, 7182, 7432, 8208, 8361, 8512, 9072, 9576, 10773, 10944, 11148, 12096, 12312, 12768, 13006, 14364, 14864, 16416, 16722, 17651, 18144, 19152, 19509, 21546, 22296, 24624, 25083, 25536, 26012, 28728, 29728, 32832, 33444, 35302, 36288, 38304, 39018, 43092, 44592, 49248, 50166, 52024, 52953, 57456, 58527, 59456, 66888, 70604, 75249, 76608, 78036, 86184, 89184, 98496, 100332, 104048, 105906, 114912, 117054, 123557, 133776, 141208, 150498, 156072, 158859, 172368, 175581, 178368, 200664, 208096, 211812, 229824, 234108, 247114, 267552, 282416, 300996, 312144, 317718, 344736, 351162, 370671, 401328, 416192, 423624, 468216, 476577, 494228, 526743, 535104, 564832, 601992, 624288, 635436, 689472, 702324, 741342, 802656, 847248, 936432, 953154, 988456, 1053486, 1112013, 1129664, 1203984, 1248576, 1270872, 1404648, 1429731, 1482684, 1605312, 1694496, 1872864, 1906308, 1976912, 2106972, 2224026, 2407968, 2541744, 2809296, 2859462, 2965368, 3336039, 3388992, 3745728, 3812616, 3953824, 4213944, 4448052, 4815936, 5083488, 5618592, 5718924, 5930736, 6672078, 7625232, 7907648, 8427888, 8896104, 10008117, 10166976, 11237184, 11437848, 11861472, 13344156, 15250464, 16855776, 17792208, 20016234, 22875696, 23722944, 26688312, 30500928, 33711552, 35584416, 40032468, 45751392, 53376624, 71168832, 80064936, 91502784, 106753248, 160129872, 213506496, 320259744, 640519488]

約数ペア:

[(1, 640519488), (2, 320259744), (3, 213506496), (4, 160129872), (6, 106753248), (7, 91502784), (8, 80064936), (9, 71168832), (12, 53376624), (14, 45751392), (16, 40032468), (18, 35584416), (19, 33711552), (21, 30500928), (24, 26688312), (27, 23722944), (28, 22875696), (32, 20016234), (36, 17792208), (38, 16855776), (42, 15250464), (48, 13344156), (54, 11861472), (56, 11437848), (57, 11237184), (63, 10166976), (64, 10008117), (72, 8896104), (76, 8427888), (81, 7907648), (84, 7625232), (96, 6672078), (108, 5930736), (112, 5718924), (114, 5618592), (126, 5083488), (133, 4815936), (144, 4448052), (152, 4213944), (162, 3953824), (168, 3812616), (171, 3745728), (189, 3388992), (192, 3336039), (216, 2965368), (224, 2859462), (228, 2809296), (252, 2541744), (266, 2407968), (288, 2224026), (304, 2106972), (324, 1976912), (336, 1906308), (342, 1872864), (378, 1694496), (399, 1605312), (432, 1482684), (448, 1429731), (456, 1404648), (504, 1270872), (513, 1248576), (532, 1203984), (567, 1129664), (576, 1112013), (608, 1053486), (648, 988456), (672, 953154), (684, 936432), (756, 847248), (798, 802656), (864, 741342), (912, 702324), (929, 689472), (1008, 635436), (1026, 624288), (1064, 601992), (1134, 564832), (1197, 535104), (1216, 526743), (1296, 494228), (1344, 476577), (1368, 468216), (1512, 423624), (1539, 416192), (1596, 401328), (1728, 370671), (1824, 351162), (1858, 344736), (2016, 317718), (2052, 312144), (2128, 300996), (2268, 282416), (2394, 267552), (2592, 247114), (2736, 234108), (2787, 229824), (3024, 211812), (3078, 208096), (3192, 200664), (3591, 178368), (3648, 175581), (3716, 172368), (4032, 158859), (4104, 156072), (4256, 150498), (4536, 141208), (4788, 133776), (5184, 123557), (5472, 117054), (5574, 114912), (6048, 105906), (6156, 104048), (6384, 100332), (6503, 98496), (7182, 89184), (7432, 86184), (8208, 78036), (8361, 76608), (8512, 75249), (9072, 70604), (9576, 66888), (10773, 59456), (10944, 58527), (11148, 57456), (12096, 52953), (12312, 52024), (12768, 50166), (13006, 49248), (14364, 44592), (14864, 43092), (16416, 39018), (16722, 38304), (17651, 36288), (18144, 35302), (19152, 33444), (19509, 32832), (21546, 29728), (22296, 28728), (24624, 26012), (25083, 25536)]