256830800

素因数分解:

$2^4\times 5^2\times {\mathrm{642077}}^1$

素因数の和:642095

約数の個数: 30

約数和(自身を含む): 617036958

約数和(自身を除く): 360206158

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 642077, 1284154, 2568308, 3210385, 5136616, 6420770, 10273232, 12841540, 16051925, 25683080, 32103850, 51366160, 64207700, 128415400, 256830800]

約数ペア:

[(1, 256830800), (2, 128415400), (4, 64207700), (5, 51366160), (8, 32103850), (10, 25683080), (16, 16051925), (20, 12841540), (25, 10273232), (40, 6420770), (50, 5136616), (80, 3210385), (100, 2568308), (200, 1284154), (400, 642077)]