644159488

素因数分解:

$2^{11}\times 7^4\times {\mathrm{131}}^1$

素因数の和:181

約数の個数: 120

約数和(自身を含む): 1514052540

約数和(自身を除く): 869893052

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 131, 196, 224, 256, 262, 343, 392, 448, 512, 524, 686, 784, 896, 917, 1024, 1048, 1372, 1568, 1792, 1834, 2048, 2096, 2401, 2744, 3136, 3584, 3668, 4192, 4802, 5488, 6272, 6419, 7168, 7336, 8384, 9604, 10976, 12544, 12838, 14336, 14672, 16768, 19208, 21952, 25088, 25676, 29344, 33536, 38416, 43904, 44933, 50176, 51352, 58688, 67072, 76832, 87808, 89866, 100352, 102704, 117376, 134144, 153664, 175616, 179732, 205408, 234752, 268288, 307328, 314531, 351232, 359464, 410816, 469504, 614656, 629062, 702464, 718928, 821632, 939008, 1229312, 1258124, 1437856, 1643264, 1878016, 2458624, 2516248, 2875712, 3286528, 4917248, 5032496, 5751424, 6573056, 10064992, 11502848, 13146112, 20129984, 23005696, 40259968, 46011392, 80519936, 92022784, 161039872, 322079744, 644159488]

約数ペア:

[(1, 644159488), (2, 322079744), (4, 161039872), (7, 92022784), (8, 80519936), (14, 46011392), (16, 40259968), (28, 23005696), (32, 20129984), (49, 13146112), (56, 11502848), (64, 10064992), (98, 6573056), (112, 5751424), (128, 5032496), (131, 4917248), (196, 3286528), (224, 2875712), (256, 2516248), (262, 2458624), (343, 1878016), (392, 1643264), (448, 1437856), (512, 1258124), (524, 1229312), (686, 939008), (784, 821632), (896, 718928), (917, 702464), (1024, 629062), (1048, 614656), (1372, 469504), (1568, 410816), (1792, 359464), (1834, 351232), (2048, 314531), (2096, 307328), (2401, 268288), (2744, 234752), (3136, 205408), (3584, 179732), (3668, 175616), (4192, 153664), (4802, 134144), (5488, 117376), (6272, 102704), (6419, 100352), (7168, 89866), (7336, 87808), (8384, 76832), (9604, 67072), (10976, 58688), (12544, 51352), (12838, 50176), (14336, 44933), (14672, 43904), (16768, 38416), (19208, 33536), (21952, 29344), (25088, 25676)]