81110800

素因数分解:

$2^4\times 5^2\times {\mathrm{202777}}^1$

素因数の和:202795

約数の個数: 30

約数和(自身を含む): 194869658

約数和(自身を除く): 113758858

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 202777, 405554, 811108, 1013885, 1622216, 2027770, 3244432, 4055540, 5069425, 8111080, 10138850, 16222160, 20277700, 40555400, 81110800]

約数ペア:

[(1, 81110800), (2, 40555400), (4, 20277700), (5, 16222160), (8, 10138850), (10, 8111080), (16, 5069425), (20, 4055540), (25, 3244432), (40, 2027770), (50, 1622216), (80, 1013885), (100, 811108), (200, 405554), (400, 202777)]