20145664

素因数分解:

$2^9\times 7^2\times {\mathrm{11}}^1\times {\mathrm{73}}^1$

素因数の和:116

約数の個数: 120

約数和(自身を含む): 51780168

約数和(自身を除く): 31634504

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 49, 56, 64, 73, 77, 88, 98, 112, 128, 146, 154, 176, 196, 224, 256, 292, 308, 352, 392, 448, 511, 512, 539, 584, 616, 704, 784, 803, 896, 1022, 1078, 1168, 1232, 1408, 1568, 1606, 1792, 2044, 2156, 2336, 2464, 2816, 3136, 3212, 3577, 3584, 4088, 4312, 4672, 4928, 5621, 5632, 6272, 6424, 7154, 8176, 8624, 9344, 9856, 11242, 12544, 12848, 14308, 16352, 17248, 18688, 19712, 22484, 25088, 25696, 28616, 32704, 34496, 37376, 39347, 39424, 44968, 51392, 57232, 65408, 68992, 78694, 89936, 102784, 114464, 130816, 137984, 157388, 179872, 205568, 228928, 261632, 275968, 314776, 359744, 411136, 457856, 629552, 719488, 915712, 1259104, 1438976, 1831424, 2518208, 2877952, 5036416, 10072832, 20145664]

約数ペア:

[(1, 20145664), (2, 10072832), (4, 5036416), (7, 2877952), (8, 2518208), (11, 1831424), (14, 1438976), (16, 1259104), (22, 915712), (28, 719488), (32, 629552), (44, 457856), (49, 411136), (56, 359744), (64, 314776), (73, 275968), (77, 261632), (88, 228928), (98, 205568), (112, 179872), (128, 157388), (146, 137984), (154, 130816), (176, 114464), (196, 102784), (224, 89936), (256, 78694), (292, 68992), (308, 65408), (352, 57232), (392, 51392), (448, 44968), (511, 39424), (512, 39347), (539, 37376), (584, 34496), (616, 32704), (704, 28616), (784, 25696), (803, 25088), (896, 22484), (1022, 19712), (1078, 18688), (1168, 17248), (1232, 16352), (1408, 14308), (1568, 12848), (1606, 12544), (1792, 11242), (2044, 9856), (2156, 9344), (2336, 8624), (2464, 8176), (2816, 7154), (3136, 6424), (3212, 6272), (3577, 5632), (3584, 5621), (4088, 4928), (4312, 4672)]