2105420

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{199}}^1$

素因数の和:254

約数の個数: 36

約数和(自身を含む): 4645200

約数和(自身を除く): 2539780

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 199, 230, 398, 460, 529, 796, 995, 1058, 1990, 2116, 2645, 3980, 4577, 5290, 9154, 10580, 18308, 22885, 45770, 91540, 105271, 210542, 421084, 526355, 1052710, 2105420]

約数ペア:

[(1, 2105420), (2, 1052710), (4, 526355), (5, 421084), (10, 210542), (20, 105271), (23, 91540), (46, 45770), (92, 22885), (115, 18308), (199, 10580), (230, 9154), (398, 5290), (460, 4577), (529, 3980), (796, 2645), (995, 2116), (1058, 1990)]