3889540

素因数分解:

$2^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{443}}^1$

素因数の和:891

約数の個数: 24

約数和(自身を含む): 8205120

約数和(自身を除く): 4315580

約数列:

[1, 2, 4, 5, 10, 20, 439, 443, 878, 886, 1756, 1772, 2195, 2215, 4390, 4430, 8780, 8860, 194477, 388954, 777908, 972385, 1944770, 3889540]

約数ペア:

[(1, 3889540), (2, 1944770), (4, 972385), (5, 777908), (10, 388954), (20, 194477), (439, 8860), (443, 8780), (878, 4430), (886, 4390), (1756, 2215), (1772, 2195)]