18555880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{66271}}^1$

素因数の和:66289

約数の個数: 32

約数和(自身を含む): 47715840

約数和(自身を除く): 29159960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 66271, 132542, 265084, 331355, 463897, 530168, 662710, 927794, 1325420, 1855588, 2319485, 2650840, 3711176, 4638970, 9277940, 18555880]

約数ペア:

[(1, 18555880), (2, 9277940), (4, 4638970), (5, 3711176), (7, 2650840), (8, 2319485), (10, 1855588), (14, 1325420), (20, 927794), (28, 662710), (35, 530168), (40, 463897), (56, 331355), (70, 265084), (140, 132542), (280, 66271)]