1640955904

素因数分解:

$2^{16}\times 7^3\times {\mathrm{73}}^1$

素因数の和:126

約数の個数: 136

約数和(自身を含む): 3879701600

約数和(自身を除く): 2238745696

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 73, 98, 112, 128, 146, 196, 224, 256, 292, 343, 392, 448, 511, 512, 584, 686, 784, 896, 1022, 1024, 1168, 1372, 1568, 1792, 2044, 2048, 2336, 2744, 3136, 3577, 3584, 4088, 4096, 4672, 5488, 6272, 7154, 7168, 8176, 8192, 9344, 10976, 12544, 14308, 14336, 16352, 16384, 18688, 21952, 25039, 25088, 28616, 28672, 32704, 32768, 37376, 43904, 50078, 50176, 57232, 57344, 65408, 65536, 74752, 87808, 100156, 100352, 114464, 114688, 130816, 149504, 175616, 200312, 200704, 228928, 229376, 261632, 299008, 351232, 400624, 401408, 457856, 458752, 523264, 598016, 702464, 801248, 802816, 915712, 1046528, 1196032, 1404928, 1602496, 1605632, 1831424, 2093056, 2392064, 2809856, 3204992, 3211264, 3662848, 4186112, 4784128, 5619712, 6409984, 7325696, 8372224, 11239424, 12819968, 14651392, 16744448, 22478848, 25639936, 29302784, 33488896, 51279872, 58605568, 102559744, 117211136, 205119488, 234422272, 410238976, 820477952, 1640955904]

約数ペア:

[(1, 1640955904), (2, 820477952), (4, 410238976), (7, 234422272), (8, 205119488), (14, 117211136), (16, 102559744), (28, 58605568), (32, 51279872), (49, 33488896), (56, 29302784), (64, 25639936), (73, 22478848), (98, 16744448), (112, 14651392), (128, 12819968), (146, 11239424), (196, 8372224), (224, 7325696), (256, 6409984), (292, 5619712), (343, 4784128), (392, 4186112), (448, 3662848), (511, 3211264), (512, 3204992), (584, 2809856), (686, 2392064), (784, 2093056), (896, 1831424), (1022, 1605632), (1024, 1602496), (1168, 1404928), (1372, 1196032), (1568, 1046528), (1792, 915712), (2044, 802816), (2048, 801248), (2336, 702464), (2744, 598016), (3136, 523264), (3577, 458752), (3584, 457856), (4088, 401408), (4096, 400624), (4672, 351232), (5488, 299008), (6272, 261632), (7154, 229376), (7168, 228928), (8176, 200704), (8192, 200312), (9344, 175616), (10976, 149504), (12544, 130816), (14308, 114688), (14336, 114464), (16352, 100352), (16384, 100156), (18688, 87808), (21952, 74752), (25039, 65536), (25088, 65408), (28616, 57344), (28672, 57232), (32704, 50176), (32768, 50078), (37376, 43904)]