378100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{199}}^1$

素因数の和:232

約数の個数: 36

約数和(自身を含む): 868000

約数和(自身を除く): 489900

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 199, 380, 398, 475, 796, 950, 995, 1900, 1990, 3781, 3980, 4975, 7562, 9950, 15124, 18905, 19900, 37810, 75620, 94525, 189050, 378100]

約数ペア:

[(1, 378100), (2, 189050), (4, 94525), (5, 75620), (10, 37810), (19, 19900), (20, 18905), (25, 15124), (38, 9950), (50, 7562), (76, 4975), (95, 3980), (100, 3781), (190, 1990), (199, 1900), (380, 995), (398, 950), (475, 796)]