681791488

素因数分解:

$2^{12}\times 7^2\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:160

約数の個数: 156

約数和(自身を含む): 1643442240

約数和(自身を除く): 961650752

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 43, 49, 56, 64, 79, 86, 98, 112, 128, 158, 172, 196, 224, 256, 301, 316, 344, 392, 448, 512, 553, 602, 632, 688, 784, 896, 1024, 1106, 1204, 1264, 1376, 1568, 1792, 2048, 2107, 2212, 2408, 2528, 2752, 3136, 3397, 3584, 3871, 4096, 4214, 4424, 4816, 5056, 5504, 6272, 6794, 7168, 7742, 8428, 8848, 9632, 10112, 11008, 12544, 13588, 14336, 15484, 16856, 17696, 19264, 20224, 22016, 23779, 25088, 27176, 28672, 30968, 33712, 35392, 38528, 40448, 44032, 47558, 50176, 54352, 61936, 67424, 70784, 77056, 80896, 88064, 95116, 100352, 108704, 123872, 134848, 141568, 154112, 161792, 166453, 176128, 190232, 200704, 217408, 247744, 269696, 283136, 308224, 323584, 332906, 380464, 434816, 495488, 539392, 566272, 616448, 665812, 760928, 869632, 990976, 1078784, 1132544, 1232896, 1331624, 1521856, 1739264, 1981952, 2157568, 2265088, 2663248, 3043712, 3478528, 3963904, 4315136, 5326496, 6087424, 6957056, 7927808, 8630272, 10652992, 12174848, 13914112, 15855616, 21305984, 24349696, 42611968, 48699392, 85223936, 97398784, 170447872, 340895744, 681791488]

約数ペア:

[(1, 681791488), (2, 340895744), (4, 170447872), (7, 97398784), (8, 85223936), (14, 48699392), (16, 42611968), (28, 24349696), (32, 21305984), (43, 15855616), (49, 13914112), (56, 12174848), (64, 10652992), (79, 8630272), (86, 7927808), (98, 6957056), (112, 6087424), (128, 5326496), (158, 4315136), (172, 3963904), (196, 3478528), (224, 3043712), (256, 2663248), (301, 2265088), (316, 2157568), (344, 1981952), (392, 1739264), (448, 1521856), (512, 1331624), (553, 1232896), (602, 1132544), (632, 1078784), (688, 990976), (784, 869632), (896, 760928), (1024, 665812), (1106, 616448), (1204, 566272), (1264, 539392), (1376, 495488), (1568, 434816), (1792, 380464), (2048, 332906), (2107, 323584), (2212, 308224), (2408, 283136), (2528, 269696), (2752, 247744), (3136, 217408), (3397, 200704), (3584, 190232), (3871, 176128), (4096, 166453), (4214, 161792), (4424, 154112), (4816, 141568), (5056, 134848), (5504, 123872), (6272, 108704), (6794, 100352), (7168, 95116), (7742, 88064), (8428, 80896), (8848, 77056), (9632, 70784), (10112, 67424), (11008, 61936), (12544, 54352), (13588, 50176), (14336, 47558), (15484, 44032), (16856, 40448), (17696, 38528), (19264, 35392), (20224, 33712), (22016, 30968), (23779, 28672), (25088, 27176)]