255940400

素因数分解:

$2^4\times 5^2\times {\mathrm{639851}}^1$

素因数の和:639869

約数の個数: 30

約数和(自身を含む): 614897772

約数和(自身を除く): 358957372

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 639851, 1279702, 2559404, 3199255, 5118808, 6398510, 10237616, 12797020, 15996275, 25594040, 31992550, 51188080, 63985100, 127970200, 255940400]

約数ペア:

[(1, 255940400), (2, 127970200), (4, 63985100), (5, 51188080), (8, 31992550), (10, 25594040), (16, 15996275), (20, 12797020), (25, 10237616), (40, 6398510), (50, 5118808), (80, 3199255), (100, 2559404), (200, 1279702), (400, 639851)]