256435000

素因数分解:

$2^3\times 5^4\times {\mathrm{51287}}^1$

素因数の和:51313

約数の個数: 40

約数和(自身を含む): 600838920

約数和(自身を除く): 344403920

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 1000, 1250, 2500, 5000, 51287, 102574, 205148, 256435, 410296, 512870, 1025740, 1282175, 2051480, 2564350, 5128700, 6410875, 10257400, 12821750, 25643500, 32054375, 51287000, 64108750, 128217500, 256435000]

約数ペア:

[(1, 256435000), (2, 128217500), (4, 64108750), (5, 51287000), (8, 32054375), (10, 25643500), (20, 12821750), (25, 10257400), (40, 6410875), (50, 5128700), (100, 2564350), (125, 2051480), (200, 1282175), (250, 1025740), (500, 512870), (625, 410296), (1000, 256435), (1250, 205148), (2500, 102574), (5000, 51287)]