81415000

素因数分解:

$2^3\times 5^4\times {\mathrm{19}}^1\times {\mathrm{857}}^1$

素因数の和:902

約数の個数: 80

約数和(自身を含む): 201029400

約数和(自身を除く): 119614400

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 125, 152, 190, 200, 250, 380, 475, 500, 625, 760, 857, 950, 1000, 1250, 1714, 1900, 2375, 2500, 3428, 3800, 4285, 4750, 5000, 6856, 8570, 9500, 11875, 16283, 17140, 19000, 21425, 23750, 32566, 34280, 42850, 47500, 65132, 81415, 85700, 95000, 107125, 130264, 162830, 171400, 214250, 325660, 407075, 428500, 535625, 651320, 814150, 857000, 1071250, 1628300, 2035375, 2142500, 3256600, 4070750, 4285000, 8141500, 10176875, 16283000, 20353750, 40707500, 81415000]

約数ペア:

[(1, 81415000), (2, 40707500), (4, 20353750), (5, 16283000), (8, 10176875), (10, 8141500), (19, 4285000), (20, 4070750), (25, 3256600), (38, 2142500), (40, 2035375), (50, 1628300), (76, 1071250), (95, 857000), (100, 814150), (125, 651320), (152, 535625), (190, 428500), (200, 407075), (250, 325660), (380, 214250), (475, 171400), (500, 162830), (625, 130264), (760, 107125), (857, 95000), (950, 85700), (1000, 81415), (1250, 65132), (1714, 47500), (1900, 42850), (2375, 34280), (2500, 32566), (3428, 23750), (3800, 21425), (4285, 19000), (4750, 17140), (5000, 16283), (6856, 11875), (8570, 9500)]