256422800

素因数分解:

$2^4\times 5^2\times {\mathrm{641057}}^1$

素因数の和:641075

約数の個数: 30

約数和(自身を含む): 616056738

約数和(自身を除く): 359633938

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 641057, 1282114, 2564228, 3205285, 5128456, 6410570, 10256912, 12821140, 16026425, 25642280, 32052850, 51284560, 64105700, 128211400, 256422800]

約数ペア:

[(1, 256422800), (2, 128211400), (4, 64105700), (5, 51284560), (8, 32052850), (10, 25642280), (16, 16026425), (20, 12821140), (25, 10256912), (40, 6410570), (50, 5128456), (80, 3205285), (100, 2564228), (200, 1282114), (400, 641057)]