128681728

素因数分解:

$2^8\times 7^1\times {\mathrm{71809}}^1$

素因数の和:71832

約数の個数: 36

約数和(自身を含む): 293559280

約数和(自身を除く): 164877552

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 896, 1792, 71809, 143618, 287236, 502663, 574472, 1005326, 1148944, 2010652, 2297888, 4021304, 4595776, 8042608, 9191552, 16085216, 18383104, 32170432, 64340864, 128681728]

約数ペア:

[(1, 128681728), (2, 64340864), (4, 32170432), (7, 18383104), (8, 16085216), (14, 9191552), (16, 8042608), (28, 4595776), (32, 4021304), (56, 2297888), (64, 2010652), (112, 1148944), (128, 1005326), (224, 574472), (256, 502663), (448, 287236), (896, 143618), (1792, 71809)]