42278000

素因数分解:

$2^4\times 5^3\times {\mathrm{21139}}^1$

素因数の和:21162

約数の個数: 40

約数和(自身を含む): 102233040

約数和(自身を除く): 59955040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 21139, 42278, 84556, 105695, 169112, 211390, 338224, 422780, 528475, 845560, 1056950, 1691120, 2113900, 2642375, 4227800, 5284750, 8455600, 10569500, 21139000, 42278000]

約数ペア:

[(1, 42278000), (2, 21139000), (4, 10569500), (5, 8455600), (8, 5284750), (10, 4227800), (16, 2642375), (20, 2113900), (25, 1691120), (40, 1056950), (50, 845560), (80, 528475), (100, 422780), (125, 338224), (200, 211390), (250, 169112), (400, 105695), (500, 84556), (1000, 42278), (2000, 21139)]