438800

素因数分解:

$2^4\times 5^2\times {\mathrm{1097}}^1$

素因数の和:1115

約数の個数: 30

約数和(自身を含む): 1055178

約数和(自身を除く): 616378

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 1097, 2194, 4388, 5485, 8776, 10970, 17552, 21940, 27425, 43880, 54850, 87760, 109700, 219400, 438800]

約数ペア:

[(1, 438800), (2, 219400), (4, 109700), (5, 87760), (8, 54850), (10, 43880), (16, 27425), (20, 21940), (25, 17552), (40, 10970), (50, 8776), (80, 5485), (100, 4388), (200, 2194), (400, 1097)]