8397580

素因数分解:

$2^2\times 5^1\times {\mathrm{643}}^1\times {\mathrm{653}}^1$

素因数の和:1305

約数の個数: 24

約数和(自身を含む): 17689392

約数和(自身を除く): 9291812

約数列:

[1, 2, 4, 5, 10, 20, 643, 653, 1286, 1306, 2572, 2612, 3215, 3265, 6430, 6530, 12860, 13060, 419879, 839758, 1679516, 2099395, 4198790, 8397580]

約数ペア:

[(1, 8397580), (2, 4198790), (4, 2099395), (5, 1679516), (10, 839758), (20, 419879), (643, 13060), (653, 12860), (1286, 6530), (1306, 6430), (2572, 3265), (2612, 3215)]