20036000

素因数分解:

$2^5\times 5^3\times {\mathrm{5009}}^1$

素因数の和:5034

約数の個数: 48

約数和(自身を含む): 49238280

約数和(自身を除く): 29202280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 5009, 10018, 20036, 25045, 40072, 50090, 80144, 100180, 125225, 160288, 200360, 250450, 400720, 500900, 626125, 801440, 1001800, 1252250, 2003600, 2504500, 4007200, 5009000, 10018000, 20036000]

約数ペア:

[(1, 20036000), (2, 10018000), (4, 5009000), (5, 4007200), (8, 2504500), (10, 2003600), (16, 1252250), (20, 1001800), (25, 801440), (32, 626125), (40, 500900), (50, 400720), (80, 250450), (100, 200360), (125, 160288), (160, 125225), (200, 100180), (250, 80144), (400, 50090), (500, 40072), (800, 25045), (1000, 20036), (2000, 10018), (4000, 5009)]