7894000

素因数分解:

$2^4\times 5^3\times {\mathrm{3947}}^1$

素因数の和:3970

約数の個数: 40

約数和(自身を含む): 19092528

約数和(自身を除く): 11198528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 3947, 7894, 15788, 19735, 31576, 39470, 63152, 78940, 98675, 157880, 197350, 315760, 394700, 493375, 789400, 986750, 1578800, 1973500, 3947000, 7894000]

約数ペア:

[(1, 7894000), (2, 3947000), (4, 1973500), (5, 1578800), (8, 986750), (10, 789400), (16, 493375), (20, 394700), (25, 315760), (40, 197350), (50, 157880), (80, 98675), (100, 78940), (125, 63152), (200, 39470), (250, 31576), (400, 19735), (500, 15788), (1000, 7894), (2000, 3947)]