19840300

素因数分解:

$2^2\times 5^2\times {\mathrm{199}}^1\times {\mathrm{997}}^1$

素因数の和:1210

約数の個数: 36

約数和(自身を含む): 43313200

約数和(自身を除く): 23472900

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 199, 398, 796, 995, 997, 1990, 1994, 3980, 3988, 4975, 4985, 9950, 9970, 19900, 19940, 24925, 49850, 99700, 198403, 396806, 793612, 992015, 1984030, 3968060, 4960075, 9920150, 19840300]

約数ペア:

[(1, 19840300), (2, 9920150), (4, 4960075), (5, 3968060), (10, 1984030), (20, 992015), (25, 793612), (50, 396806), (100, 198403), (199, 99700), (398, 49850), (796, 24925), (995, 19940), (997, 19900), (1990, 9970), (1994, 9950), (3980, 4985), (3988, 4975)]