6403820

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1609}}^1$

素因数の和:1817

約数の個数: 24

約数和(自身を含む): 13524000

約数和(自身を除く): 7120180

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1609, 1990, 3218, 3980, 6436, 8045, 16090, 32180, 320191, 640382, 1280764, 1600955, 3201910, 6403820]

約数ペア:

[(1, 6403820), (2, 3201910), (4, 1600955), (5, 1280764), (10, 640382), (20, 320191), (199, 32180), (398, 16090), (796, 8045), (995, 6436), (1609, 3980), (1990, 3218)]