20188550

素因数分解:

$2^1\times 5^2\times {\mathrm{199}}^1\times {\mathrm{2029}}^1$

素因数の和:2240

約数の個数: 24

約数和(自身を含む): 37758000

約数和(自身を除く): 17569450

約数列:

[1, 2, 5, 10, 25, 50, 199, 398, 995, 1990, 2029, 4058, 4975, 9950, 10145, 20290, 50725, 101450, 403771, 807542, 2018855, 4037710, 10094275, 20188550]

約数ペア:

[(1, 20188550), (2, 10094275), (5, 4037710), (10, 2018855), (25, 807542), (50, 403771), (199, 101450), (398, 50725), (995, 20290), (1990, 10145), (2029, 9950), (4058, 4975)]