20011000

素因数分解:

$2^3\times 5^3\times {\mathrm{20011}}^1$

素因数の和:20032

約数の個数: 32

約数和(自身を含む): 46828080

約数和(自身を除く): 26817080

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 1000, 20011, 40022, 80044, 100055, 160088, 200110, 400220, 500275, 800440, 1000550, 2001100, 2501375, 4002200, 5002750, 10005500, 20011000]

約数ペア:

[(1, 20011000), (2, 10005500), (4, 5002750), (5, 4002200), (8, 2501375), (10, 2001100), (20, 1000550), (25, 800440), (40, 500275), (50, 400220), (100, 200110), (125, 160088), (200, 100055), (250, 80044), (500, 40022), (1000, 20011)]