1747220

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{439}}^1$

素因数の和:647

約数の個数: 24

約数和(自身を含む): 3696000

約数和(自身を除く): 1948780

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 439, 796, 878, 995, 1756, 1990, 2195, 3980, 4390, 8780, 87361, 174722, 349444, 436805, 873610, 1747220]

約数ペア:

[(1, 1747220), (2, 873610), (4, 436805), (5, 349444), (10, 174722), (20, 87361), (199, 8780), (398, 4390), (439, 3980), (796, 2195), (878, 1990), (995, 1756)]