20676100

素因数分解:

$2^2\times 5^2\times {\mathrm{199}}^1\times {\mathrm{1039}}^1$

素因数の和:1252

約数の個数: 36

約数和(自身を含む): 45136000

約数和(自身を除く): 24459900

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 199, 398, 796, 995, 1039, 1990, 2078, 3980, 4156, 4975, 5195, 9950, 10390, 19900, 20780, 25975, 51950, 103900, 206761, 413522, 827044, 1033805, 2067610, 4135220, 5169025, 10338050, 20676100]

約数ペア:

[(1, 20676100), (2, 10338050), (4, 5169025), (5, 4135220), (10, 2067610), (20, 1033805), (25, 827044), (50, 413522), (100, 206761), (199, 103900), (398, 51950), (796, 25975), (995, 20780), (1039, 19900), (1990, 10390), (2078, 9950), (3980, 5195), (4156, 4975)]