9985820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{199}}^1$

素因数の和:414

約数の個数: 48

約数和(自身を含む): 22814400

約数和(自身を除く): 12828580

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 193, 199, 260, 386, 398, 772, 796, 965, 995, 1930, 1990, 2509, 2587, 3860, 3980, 5018, 5174, 10036, 10348, 12545, 12935, 25090, 25870, 38407, 50180, 51740, 76814, 153628, 192035, 384070, 499291, 768140, 998582, 1997164, 2496455, 4992910, 9985820]

約数ペア:

[(1, 9985820), (2, 4992910), (4, 2496455), (5, 1997164), (10, 998582), (13, 768140), (20, 499291), (26, 384070), (52, 192035), (65, 153628), (130, 76814), (193, 51740), (199, 50180), (260, 38407), (386, 25870), (398, 25090), (772, 12935), (796, 12545), (965, 10348), (995, 10036), (1930, 5174), (1990, 5018), (2509, 3980), (2587, 3860)]