289106120

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{32411}}^1$

素因数の和:32645

約数の個数: 32

約数和(自身を含む): 653425920

約数和(自身を除く): 364319800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 2230, 4460, 8920, 32411, 64822, 129644, 162055, 259288, 324110, 648220, 1296440, 7227653, 14455306, 28910612, 36138265, 57821224, 72276530, 144553060, 289106120]

約数ペア:

[(1, 289106120), (2, 144553060), (4, 72276530), (5, 57821224), (8, 36138265), (10, 28910612), (20, 14455306), (40, 7227653), (223, 1296440), (446, 648220), (892, 324110), (1115, 259288), (1784, 162055), (2230, 129644), (4460, 64822), (8920, 32411)]