845500

素因数分解:

$2^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{89}}^1$

素因数の和:127

約数の個数: 48

約数和(自身を含む): 1965600

約数和(自身を除く): 1120100

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 89, 95, 100, 125, 178, 190, 250, 356, 380, 445, 475, 500, 890, 950, 1691, 1780, 1900, 2225, 2375, 3382, 4450, 4750, 6764, 8455, 8900, 9500, 11125, 16910, 22250, 33820, 42275, 44500, 84550, 169100, 211375, 422750, 845500]

約数ペア:

[(1, 845500), (2, 422750), (4, 211375), (5, 169100), (10, 84550), (19, 44500), (20, 42275), (25, 33820), (38, 22250), (50, 16910), (76, 11125), (89, 9500), (95, 8900), (100, 8455), (125, 6764), (178, 4750), (190, 4450), (250, 3382), (356, 2375), (380, 2225), (445, 1900), (475, 1780), (500, 1691), (890, 950)]