256976384

素因数分解:

$2^9\times 7^2\times {\mathrm{10243}}^1$

素因数の和:10275

約数の個数: 60

約数和(自身を含む): 597337884

約数和(自身を除く): 340361500

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, 1568, 1792, 3136, 3584, 6272, 10243, 12544, 20486, 25088, 40972, 71701, 81944, 143402, 163888, 286804, 327776, 501907, 573608, 655552, 1003814, 1147216, 1311104, 2007628, 2294432, 2622208, 4015256, 4588864, 5244416, 8030512, 9177728, 16061024, 18355456, 32122048, 36710912, 64244096, 128488192, 256976384]

約数ペア:

[(1, 256976384), (2, 128488192), (4, 64244096), (7, 36710912), (8, 32122048), (14, 18355456), (16, 16061024), (28, 9177728), (32, 8030512), (49, 5244416), (56, 4588864), (64, 4015256), (98, 2622208), (112, 2294432), (128, 2007628), (196, 1311104), (224, 1147216), (256, 1003814), (392, 655552), (448, 573608), (512, 501907), (784, 327776), (896, 286804), (1568, 163888), (1792, 143402), (3136, 81944), (3584, 71701), (6272, 40972), (10243, 25088), (12544, 20486)]