8642680

素因数分解:

$2^3\times 5^1\times {\mathrm{433}}^1\times {\mathrm{499}}^1$

素因数の和:943

約数の個数: 32

約数和(自身を含む): 19530000

約数和(自身を除く): 10887320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 433, 499, 866, 998, 1732, 1996, 2165, 2495, 3464, 3992, 4330, 4990, 8660, 9980, 17320, 19960, 216067, 432134, 864268, 1080335, 1728536, 2160670, 4321340, 8642680]

約数ペア:

[(1, 8642680), (2, 4321340), (4, 2160670), (5, 1728536), (8, 1080335), (10, 864268), (20, 432134), (40, 216067), (433, 19960), (499, 17320), (866, 9980), (998, 8660), (1732, 4990), (1996, 4330), (2165, 3992), (2495, 3464)]