257793256

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{107057}}^1$

素因数の和:107113

約数の個数: 32

約数和(自身を含む): 565266240

約数和(自身を除く): 307472984

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 86, 172, 301, 344, 602, 1204, 2408, 107057, 214114, 428228, 749399, 856456, 1498798, 2997596, 4603451, 5995192, 9206902, 18413804, 32224157, 36827608, 64448314, 128896628, 257793256]

約数ペア:

[(1, 257793256), (2, 128896628), (4, 64448314), (7, 36827608), (8, 32224157), (14, 18413804), (28, 9206902), (43, 5995192), (56, 4603451), (86, 2997596), (172, 1498798), (301, 856456), (344, 749399), (602, 428228), (1204, 214114), (2408, 107057)]