85488400

素因数分解:

$2^4\times 5^2\times {\mathrm{213721}}^1$

素因数の和:213739

約数の個数: 30

約数和(自身を含む): 205386842

約数和(自身を除く): 119898442

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 213721, 427442, 854884, 1068605, 1709768, 2137210, 3419536, 4274420, 5343025, 8548840, 10686050, 17097680, 21372100, 42744200, 85488400]

約数ペア:

[(1, 85488400), (2, 42744200), (4, 21372100), (5, 17097680), (8, 10686050), (10, 8548840), (16, 5343025), (20, 4274420), (25, 3419536), (40, 2137210), (50, 1709768), (80, 1068605), (100, 854884), (200, 427442), (400, 213721)]