19826500

素因数分解:

$2^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{2087}}^1$

素因数の和:2125

約数の個数: 48

約数和(自身を含む): 45601920

約数和(自身を除く): 25775420

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 125, 190, 250, 380, 475, 500, 950, 1900, 2087, 2375, 4174, 4750, 8348, 9500, 10435, 20870, 39653, 41740, 52175, 79306, 104350, 158612, 198265, 208700, 260875, 396530, 521750, 793060, 991325, 1043500, 1982650, 3965300, 4956625, 9913250, 19826500]

約数ペア:

[(1, 19826500), (2, 9913250), (4, 4956625), (5, 3965300), (10, 1982650), (19, 1043500), (20, 991325), (25, 793060), (38, 521750), (50, 396530), (76, 260875), (95, 208700), (100, 198265), (125, 158612), (190, 104350), (250, 79306), (380, 52175), (475, 41740), (500, 39653), (950, 20870), (1900, 10435), (2087, 9500), (2375, 8348), (4174, 4750)]