1321556000

素因数分解:

$2^5\times 5^3\times {\mathrm{330389}}^1$

素因数の和:330414

約数の個数: 48

約数和(自身を含む): 3247072920

約数和(自身を除く): 1925516920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 330389, 660778, 1321556, 1651945, 2643112, 3303890, 5286224, 6607780, 8259725, 10572448, 13215560, 16519450, 26431120, 33038900, 41298625, 52862240, 66077800, 82597250, 132155600, 165194500, 264311200, 330389000, 660778000, 1321556000]

約数ペア:

[(1, 1321556000), (2, 660778000), (4, 330389000), (5, 264311200), (8, 165194500), (10, 132155600), (16, 82597250), (20, 66077800), (25, 52862240), (32, 41298625), (40, 33038900), (50, 26431120), (80, 16519450), (100, 13215560), (125, 10572448), (160, 8259725), (200, 6607780), (250, 5286224), (400, 3303890), (500, 2643112), (800, 1651945), (1000, 1321556), (2000, 660778), (4000, 330389)]