259400

素因数分解:

$2^3\times 5^2\times {\mathrm{1297}}^1$

素因数の和:1313

約数の個数: 24

約数和(自身を含む): 603570

約数和(自身を除く): 344170

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 1297, 2594, 5188, 6485, 10376, 12970, 25940, 32425, 51880, 64850, 129700, 259400]

約数ペア:

[(1, 259400), (2, 129700), (4, 64850), (5, 51880), (8, 32425), (10, 25940), (20, 12970), (25, 10376), (40, 6485), (50, 5188), (100, 2594), (200, 1297)]