289380238

素因数分解:

$2^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{277}}^1\times {\mathrm{1051}}^1$

素因数の和:1408

約数の個数: 32

約数和(自身を含む): 505363968

約数和(自身を除く): 215983730

約数列:

[1, 2, 7, 14, 71, 142, 277, 497, 554, 994, 1051, 1939, 2102, 3878, 7357, 14714, 19667, 39334, 74621, 137669, 149242, 275338, 291127, 522347, 582254, 1044694, 2037889, 4075778, 20670017, 41340034, 144690119, 289380238]

約数ペア:

[(1, 289380238), (2, 144690119), (7, 41340034), (14, 20670017), (71, 4075778), (142, 2037889), (277, 1044694), (497, 582254), (554, 522347), (994, 291127), (1051, 275338), (1939, 149242), (2102, 137669), (3878, 74621), (7357, 39334), (14714, 19667)]