18020155

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{2207}}^1$

素因数の和:2306

約数の個数: 16

約数和(自身を含む): 22892544

約数和(自身を除く): 4872389

約数列:

[1, 5, 23, 71, 115, 355, 1633, 2207, 8165, 11035, 50761, 156697, 253805, 783485, 3604031, 18020155]

約数ペア:

[(1, 18020155), (5, 3604031), (23, 783485), (71, 253805), (115, 156697), (355, 50761), (1633, 11035), (2207, 8165)]