2143945

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{181}}^1$

素因数の和:312

約数の個数: 16

約数和(自身を含む): 2725632

約数和(自身を除く): 581687

約数列:

[1, 5, 23, 103, 115, 181, 515, 905, 2369, 4163, 11845, 18643, 20815, 93215, 428789, 2143945]

約数ペア:

[(1, 2143945), (5, 428789), (23, 93215), (103, 20815), (115, 18643), (181, 11845), (515, 4163), (905, 2369)]