256700416

素因数分解:

$2^{12}\times 7^2\times {\mathrm{1279}}^1$

素因数の和:1317

約数の個数: 78

約数和(自身を含む): 597615360

約数和(自身を除く): 340914944

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 256, 392, 448, 512, 784, 896, 1024, 1279, 1568, 1792, 2048, 2558, 3136, 3584, 4096, 5116, 6272, 7168, 8953, 10232, 12544, 14336, 17906, 20464, 25088, 28672, 35812, 40928, 50176, 62671, 71624, 81856, 100352, 125342, 143248, 163712, 200704, 250684, 286496, 327424, 501368, 572992, 654848, 1002736, 1145984, 1309696, 2005472, 2291968, 2619392, 4010944, 4583936, 5238784, 8021888, 9167872, 16043776, 18335744, 32087552, 36671488, 64175104, 128350208, 256700416]

約数ペア:

[(1, 256700416), (2, 128350208), (4, 64175104), (7, 36671488), (8, 32087552), (14, 18335744), (16, 16043776), (28, 9167872), (32, 8021888), (49, 5238784), (56, 4583936), (64, 4010944), (98, 2619392), (112, 2291968), (128, 2005472), (196, 1309696), (224, 1145984), (256, 1002736), (392, 654848), (448, 572992), (512, 501368), (784, 327424), (896, 286496), (1024, 250684), (1279, 200704), (1568, 163712), (1792, 143248), (2048, 125342), (2558, 100352), (3136, 81856), (3584, 71624), (4096, 62671), (5116, 50176), (6272, 40928), (7168, 35812), (8953, 28672), (10232, 25088), (12544, 20464), (14336, 17906)]