281951488

素因数分解:

$2^8\times 7^3\times {\mathrm{13}}^2\times {\mathrm{19}}^1$

素因数の和:82

約数の個数: 216

約数和(自身を含む): 748104000

約数和(自身を除く): 466152512

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 19, 26, 28, 32, 38, 49, 52, 56, 64, 76, 91, 98, 104, 112, 128, 133, 152, 169, 182, 196, 208, 224, 247, 256, 266, 304, 338, 343, 364, 392, 416, 448, 494, 532, 608, 637, 676, 686, 728, 784, 832, 896, 931, 988, 1064, 1183, 1216, 1274, 1352, 1372, 1456, 1568, 1664, 1729, 1792, 1862, 1976, 2128, 2366, 2432, 2548, 2704, 2744, 2912, 3136, 3211, 3328, 3458, 3724, 3952, 4256, 4459, 4732, 4864, 5096, 5408, 5488, 5824, 6272, 6422, 6517, 6916, 7448, 7904, 8281, 8512, 8918, 9464, 10192, 10816, 10976, 11648, 12103, 12544, 12844, 13034, 13832, 14896, 15808, 16562, 17024, 17836, 18928, 20384, 21632, 21952, 22477, 23296, 24206, 25688, 26068, 27664, 29792, 31616, 33124, 34048, 35672, 37856, 40768, 43264, 43904, 44954, 48412, 51376, 52136, 55328, 57967, 59584, 63232, 66248, 71344, 75712, 81536, 84721, 87808, 89908, 96824, 102752, 104272, 110656, 115934, 119168, 132496, 142688, 151424, 157339, 163072, 169442, 179816, 193648, 205504, 208544, 221312, 231868, 238336, 264992, 285376, 302848, 314678, 338884, 359632, 387296, 411008, 417088, 442624, 463736, 529984, 570752, 629356, 677768, 719264, 774592, 822016, 834176, 927472, 1059968, 1101373, 1141504, 1258712, 1355536, 1438528, 1549184, 1668352, 1854944, 2119936, 2202746, 2517424, 2711072, 2877056, 3098368, 3709888, 4405492, 5034848, 5422144, 5754112, 7419776, 8810984, 10069696, 10844288, 14839552, 17621968, 20139392, 21688576, 35243936, 40278784, 70487872, 140975744, 281951488]

約数ペア:

[(1, 281951488), (2, 140975744), (4, 70487872), (7, 40278784), (8, 35243936), (13, 21688576), (14, 20139392), (16, 17621968), (19, 14839552), (26, 10844288), (28, 10069696), (32, 8810984), (38, 7419776), (49, 5754112), (52, 5422144), (56, 5034848), (64, 4405492), (76, 3709888), (91, 3098368), (98, 2877056), (104, 2711072), (112, 2517424), (128, 2202746), (133, 2119936), (152, 1854944), (169, 1668352), (182, 1549184), (196, 1438528), (208, 1355536), (224, 1258712), (247, 1141504), (256, 1101373), (266, 1059968), (304, 927472), (338, 834176), (343, 822016), (364, 774592), (392, 719264), (416, 677768), (448, 629356), (494, 570752), (532, 529984), (608, 463736), (637, 442624), (676, 417088), (686, 411008), (728, 387296), (784, 359632), (832, 338884), (896, 314678), (931, 302848), (988, 285376), (1064, 264992), (1183, 238336), (1216, 231868), (1274, 221312), (1352, 208544), (1372, 205504), (1456, 193648), (1568, 179816), (1664, 169442), (1729, 163072), (1792, 157339), (1862, 151424), (1976, 142688), (2128, 132496), (2366, 119168), (2432, 115934), (2548, 110656), (2704, 104272), (2744, 102752), (2912, 96824), (3136, 89908), (3211, 87808), (3328, 84721), (3458, 81536), (3724, 75712), (3952, 71344), (4256, 66248), (4459, 63232), (4732, 59584), (4864, 57967), (5096, 55328), (5408, 52136), (5488, 51376), (5824, 48412), (6272, 44954), (6422, 43904), (6517, 43264), (6916, 40768), (7448, 37856), (7904, 35672), (8281, 34048), (8512, 33124), (8918, 31616), (9464, 29792), (10192, 27664), (10816, 26068), (10976, 25688), (11648, 24206), (12103, 23296), (12544, 22477), (12844, 21952), (13034, 21632), (13832, 20384), (14896, 18928), (15808, 17836), (16562, 17024)]