287984

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{439}}^1$

素因数の和:488

約数の個数: 20

約数和(自身を含む): 572880

約数和(自身を除く): 284896

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 439, 656, 878, 1756, 3512, 7024, 17999, 35998, 71996, 143992, 287984]

約数ペア:

[(1, 287984), (2, 143992), (4, 71996), (8, 35998), (16, 17999), (41, 7024), (82, 3512), (164, 1756), (328, 878), (439, 656)]