3781000

素因数分解:

$2^3\times 5^3\times {\mathrm{19}}^1\times {\mathrm{199}}^1$

素因数の和:239

約数の個数: 64

約数和(自身を含む): 9360000

約数和(自身を除く): 5579000

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 125, 152, 190, 199, 200, 250, 380, 398, 475, 500, 760, 796, 950, 995, 1000, 1592, 1900, 1990, 2375, 3781, 3800, 3980, 4750, 4975, 7562, 7960, 9500, 9950, 15124, 18905, 19000, 19900, 24875, 30248, 37810, 39800, 49750, 75620, 94525, 99500, 151240, 189050, 199000, 378100, 472625, 756200, 945250, 1890500, 3781000]

約数ペア:

[(1, 3781000), (2, 1890500), (4, 945250), (5, 756200), (8, 472625), (10, 378100), (19, 199000), (20, 189050), (25, 151240), (38, 99500), (40, 94525), (50, 75620), (76, 49750), (95, 39800), (100, 37810), (125, 30248), (152, 24875), (190, 19900), (199, 19000), (200, 18905), (250, 15124), (380, 9950), (398, 9500), (475, 7960), (500, 7562), (760, 4975), (796, 4750), (950, 3980), (995, 3800), (1000, 3781), (1592, 2375), (1900, 1990)]