2018000

素因数分解:

$2^4\times 5^3\times {\mathrm{1009}}^1$

素因数の和:1032

約数の個数: 40

約数和(自身を含む): 4884360

約数和(自身を除く): 2866360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 1009, 2000, 2018, 4036, 5045, 8072, 10090, 16144, 20180, 25225, 40360, 50450, 80720, 100900, 126125, 201800, 252250, 403600, 504500, 1009000, 2018000]

約数ペア:

[(1, 2018000), (2, 1009000), (4, 504500), (5, 403600), (8, 252250), (10, 201800), (16, 126125), (20, 100900), (25, 80720), (40, 50450), (50, 40360), (80, 25225), (100, 20180), (125, 16144), (200, 10090), (250, 8072), (400, 5045), (500, 4036), (1000, 2018), (1009, 2000)]