18528880

素因数分解:

$2^4\times 5^1\times {\mathrm{231611}}^1$

素因数の和:231624

約数の個数: 20

約数和(自身を含む): 43079832

約数和(自身を除く): 24550952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 231611, 463222, 926444, 1158055, 1852888, 2316110, 3705776, 4632220, 9264440, 18528880]

約数ペア:

[(1, 18528880), (2, 9264440), (4, 4632220), (5, 3705776), (8, 2316110), (10, 1852888), (16, 1158055), (20, 926444), (40, 463222), (80, 231611)]