8004400

素因数分解:

$2^4\times 5^2\times {\mathrm{20011}}^1$

素因数の和:20029

約数の個数: 30

約数和(自身を含む): 19231532

約数和(自身を除く): 11227132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 20011, 40022, 80044, 100055, 160088, 200110, 320176, 400220, 500275, 800440, 1000550, 1600880, 2001100, 4002200, 8004400]

約数ペア:

[(1, 8004400), (2, 4002200), (4, 2001100), (5, 1600880), (8, 1000550), (10, 800440), (16, 500275), (20, 400220), (25, 320176), (40, 200110), (50, 160088), (80, 100055), (100, 80044), (200, 40022), (400, 20011)]