18506000

素因数分解:

$2^4\times 5^3\times {\mathrm{19}}^1\times {\mathrm{487}}^1$

素因数の和:529

約数の個数: 80

約数和(自身を含む): 47199360

約数和(自身を除く): 28693360

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 76, 80, 95, 100, 125, 152, 190, 200, 250, 304, 380, 400, 475, 487, 500, 760, 950, 974, 1000, 1520, 1900, 1948, 2000, 2375, 2435, 3800, 3896, 4750, 4870, 7600, 7792, 9253, 9500, 9740, 12175, 18506, 19000, 19480, 24350, 37012, 38000, 38960, 46265, 48700, 60875, 74024, 92530, 97400, 121750, 148048, 185060, 194800, 231325, 243500, 370120, 462650, 487000, 740240, 925300, 974000, 1156625, 1850600, 2313250, 3701200, 4626500, 9253000, 18506000]

約数ペア:

[(1, 18506000), (2, 9253000), (4, 4626500), (5, 3701200), (8, 2313250), (10, 1850600), (16, 1156625), (19, 974000), (20, 925300), (25, 740240), (38, 487000), (40, 462650), (50, 370120), (76, 243500), (80, 231325), (95, 194800), (100, 185060), (125, 148048), (152, 121750), (190, 97400), (200, 92530), (250, 74024), (304, 60875), (380, 48700), (400, 46265), (475, 38960), (487, 38000), (500, 37012), (760, 24350), (950, 19480), (974, 19000), (1000, 18506), (1520, 12175), (1900, 9740), (1948, 9500), (2000, 9253), (2375, 7792), (2435, 7600), (3800, 4870), (3896, 4750)]