18200440

素因数分解:

$2^3\times 5^1\times {\mathrm{455011}}^1$

素因数の和:455022

約数の個数: 16

約数和(自身を含む): 40951080

約数和(自身を除く): 22750640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 455011, 910022, 1820044, 2275055, 3640088, 4550110, 9100220, 18200440]

約数ペア:

[(1, 18200440), (2, 9100220), (4, 4550110), (5, 3640088), (8, 2275055), (10, 1820044), (20, 910022), (40, 455011)]