157360400

素因数分解:

$2^4\times 5^2\times {\mathrm{393401}}^1$

素因数の和:393419

約数の個数: 30

約数和(自身を含む): 378059322

約数和(自身を除く): 220698922

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 393401, 786802, 1573604, 1967005, 3147208, 3934010, 6294416, 7868020, 9835025, 15736040, 19670050, 31472080, 39340100, 78680200, 157360400]

約数ペア:

[(1, 157360400), (2, 78680200), (4, 39340100), (5, 31472080), (8, 19670050), (10, 15736040), (16, 9835025), (20, 7868020), (25, 6294416), (40, 3934010), (50, 3147208), (80, 1967005), (100, 1573604), (200, 786802), (400, 393401)]