17243920

素因数分解:

$2^4\times 5^1\times {\mathrm{439}}^1\times {\mathrm{491}}^1$

素因数の和:943

約数の個数: 40

約数和(自身を含む): 40265280

約数和(自身を除く): 23021360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 439, 491, 878, 982, 1756, 1964, 2195, 2455, 3512, 3928, 4390, 4910, 7024, 7856, 8780, 9820, 17560, 19640, 35120, 39280, 215549, 431098, 862196, 1077745, 1724392, 2155490, 3448784, 4310980, 8621960, 17243920]

約数ペア:

[(1, 17243920), (2, 8621960), (4, 4310980), (5, 3448784), (8, 2155490), (10, 1724392), (16, 1077745), (20, 862196), (40, 431098), (80, 215549), (439, 39280), (491, 35120), (878, 19640), (982, 17560), (1756, 9820), (1964, 8780), (2195, 7856), (2455, 7024), (3512, 4910), (3928, 4390)]