28003600

素因数分解:

$2^4\times 5^2\times {\mathrm{70009}}^1$

素因数の和:70027

約数の個数: 30

約数和(自身を含む): 67279610

約数和(自身を除く): 39276010

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 70009, 140018, 280036, 350045, 560072, 700090, 1120144, 1400180, 1750225, 2800360, 3500450, 5600720, 7000900, 14001800, 28003600]

約数ペア:

[(1, 28003600), (2, 14001800), (4, 7000900), (5, 5600720), (8, 3500450), (10, 2800360), (16, 1750225), (20, 1400180), (25, 1120144), (40, 700090), (50, 560072), (80, 350045), (100, 280036), (200, 140018), (400, 70009)]