8870000

素因数分解:

$2^4\times 5^4\times {\mathrm{887}}^1$

素因数の和:915

約数の個数: 50

約数和(自身を含む): 21499368

約数和(自身を除く): 12629368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 887, 1000, 1250, 1774, 2000, 2500, 3548, 4435, 5000, 7096, 8870, 10000, 14192, 17740, 22175, 35480, 44350, 70960, 88700, 110875, 177400, 221750, 354800, 443500, 554375, 887000, 1108750, 1774000, 2217500, 4435000, 8870000]

約数ペア:

[(1, 8870000), (2, 4435000), (4, 2217500), (5, 1774000), (8, 1108750), (10, 887000), (16, 554375), (20, 443500), (25, 354800), (40, 221750), (50, 177400), (80, 110875), (100, 88700), (125, 70960), (200, 44350), (250, 35480), (400, 22175), (500, 17740), (625, 14192), (887, 10000), (1000, 8870), (1250, 7096), (1774, 5000), (2000, 4435), (2500, 3548)]