78902000

素因数分解:

$2^4\times 5^3\times {\mathrm{39451}}^1$

素因数の和:39474

約数の個数: 40

約数和(自身を含む): 190789872

約数和(自身を除く): 111887872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 39451, 78902, 157804, 197255, 315608, 394510, 631216, 789020, 986275, 1578040, 1972550, 3156080, 3945100, 4931375, 7890200, 9862750, 15780400, 19725500, 39451000, 78902000]

約数ペア:

[(1, 78902000), (2, 39451000), (4, 19725500), (5, 15780400), (8, 9862750), (10, 7890200), (16, 4931375), (20, 3945100), (25, 3156080), (40, 1972550), (50, 1578040), (80, 986275), (100, 789020), (125, 631216), (200, 394510), (250, 315608), (400, 197255), (500, 157804), (1000, 78902), (2000, 39451)]