1281556864

素因数分解:

$2^7\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:161

約数の個数: 256

約数和(自身を含む): 3274444800

約数和(自身を除く): 1992887936

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 31, 32, 37, 43, 56, 58, 62, 64, 74, 86, 112, 116, 124, 128, 148, 172, 203, 217, 224, 232, 248, 259, 296, 301, 344, 406, 434, 448, 464, 496, 518, 592, 602, 688, 812, 868, 896, 899, 928, 992, 1036, 1073, 1147, 1184, 1204, 1247, 1333, 1376, 1591, 1624, 1736, 1798, 1856, 1984, 2072, 2146, 2294, 2368, 2408, 2494, 2666, 2752, 3182, 3248, 3472, 3596, 3712, 3968, 4144, 4292, 4588, 4736, 4816, 4988, 5332, 5504, 6293, 6364, 6496, 6944, 7192, 7511, 8029, 8288, 8584, 8729, 9176, 9331, 9632, 9976, 10664, 11137, 12586, 12728, 12992, 13888, 14384, 15022, 16058, 16576, 17168, 17458, 18352, 18662, 19264, 19952, 21328, 22274, 25172, 25456, 25984, 27776, 28768, 30044, 32116, 33152, 33263, 34336, 34916, 36704, 37324, 38528, 38657, 39904, 42656, 44548, 46139, 49321, 50344, 50912, 57536, 60088, 64232, 66526, 68672, 69832, 73408, 74648, 77314, 79808, 85312, 89096, 92278, 98642, 100688, 101824, 115072, 120176, 128464, 133052, 137344, 139664, 146816, 149296, 154628, 159616, 170624, 178192, 184556, 197284, 201376, 203648, 232841, 240352, 256928, 266104, 270599, 279328, 298592, 309256, 322973, 345247, 356384, 369112, 394568, 402752, 465682, 480704, 513856, 532208, 541198, 558656, 597184, 618512, 645946, 690494, 712768, 738224, 789136, 805504, 931364, 961408, 1027712, 1064416, 1082396, 1117312, 1194368, 1237024, 1291892, 1380988, 1425536, 1430309, 1476448, 1578272, 1862728, 2128832, 2164792, 2474048, 2583784, 2761976, 2860618, 2952896, 3156544, 3725456, 4257664, 4329584, 4948096, 5167568, 5523952, 5721236, 5905792, 6313088, 7450912, 8659168, 10012163, 10335136, 11047904, 11442472, 14901824, 17318336, 20024326, 20670272, 22095808, 22884944, 29803648, 34636672, 40048652, 41340544, 44191616, 45769888, 80097304, 91539776, 160194608, 183079552, 320389216, 640778432, 1281556864]

約数ペア:

[(1, 1281556864), (2, 640778432), (4, 320389216), (7, 183079552), (8, 160194608), (14, 91539776), (16, 80097304), (28, 45769888), (29, 44191616), (31, 41340544), (32, 40048652), (37, 34636672), (43, 29803648), (56, 22884944), (58, 22095808), (62, 20670272), (64, 20024326), (74, 17318336), (86, 14901824), (112, 11442472), (116, 11047904), (124, 10335136), (128, 10012163), (148, 8659168), (172, 7450912), (203, 6313088), (217, 5905792), (224, 5721236), (232, 5523952), (248, 5167568), (259, 4948096), (296, 4329584), (301, 4257664), (344, 3725456), (406, 3156544), (434, 2952896), (448, 2860618), (464, 2761976), (496, 2583784), (518, 2474048), (592, 2164792), (602, 2128832), (688, 1862728), (812, 1578272), (868, 1476448), (896, 1430309), (899, 1425536), (928, 1380988), (992, 1291892), (1036, 1237024), (1073, 1194368), (1147, 1117312), (1184, 1082396), (1204, 1064416), (1247, 1027712), (1333, 961408), (1376, 931364), (1591, 805504), (1624, 789136), (1736, 738224), (1798, 712768), (1856, 690494), (1984, 645946), (2072, 618512), (2146, 597184), (2294, 558656), (2368, 541198), (2408, 532208), (2494, 513856), (2666, 480704), (2752, 465682), (3182, 402752), (3248, 394568), (3472, 369112), (3596, 356384), (3712, 345247), (3968, 322973), (4144, 309256), (4292, 298592), (4588, 279328), (4736, 270599), (4816, 266104), (4988, 256928), (5332, 240352), (5504, 232841), (6293, 203648), (6364, 201376), (6496, 197284), (6944, 184556), (7192, 178192), (7511, 170624), (8029, 159616), (8288, 154628), (8584, 149296), (8729, 146816), (9176, 139664), (9331, 137344), (9632, 133052), (9976, 128464), (10664, 120176), (11137, 115072), (12586, 101824), (12728, 100688), (12992, 98642), (13888, 92278), (14384, 89096), (15022, 85312), (16058, 79808), (16576, 77314), (17168, 74648), (17458, 73408), (18352, 69832), (18662, 68672), (19264, 66526), (19952, 64232), (21328, 60088), (22274, 57536), (25172, 50912), (25456, 50344), (25984, 49321), (27776, 46139), (28768, 44548), (30044, 42656), (32116, 39904), (33152, 38657), (33263, 38528), (34336, 37324), (34916, 36704)]