40036000

素因数分解:

$2^5\times 5^3\times {\mathrm{10009}}^1$

素因数の和:10034

約数の個数: 48

約数和(自身を含む): 98378280

約数和(自身を除く): 58342280

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, 10009, 20018, 40036, 50045, 80072, 100090, 160144, 200180, 250225, 320288, 400360, 500450, 800720, 1000900, 1251125, 1601440, 2001800, 2502250, 4003600, 5004500, 8007200, 10009000, 20018000, 40036000]

約数ペア:

[(1, 40036000), (2, 20018000), (4, 10009000), (5, 8007200), (8, 5004500), (10, 4003600), (16, 2502250), (20, 2001800), (25, 1601440), (32, 1251125), (40, 1000900), (50, 800720), (80, 500450), (100, 400360), (125, 320288), (160, 250225), (200, 200180), (250, 160144), (400, 100090), (500, 80072), (800, 50045), (1000, 40036), (2000, 20018), (4000, 10009)]