18075440

素因数分解:

$2^4\times 5^1\times {\mathrm{225943}}^1$

素因数の和:225956

約数の個数: 20

約数和(自身を含む): 42025584

約数和(自身を除く): 23950144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 225943, 451886, 903772, 1129715, 1807544, 2259430, 3615088, 4518860, 9037720, 18075440]

約数ペア:

[(1, 18075440), (2, 9037720), (4, 4518860), (5, 3615088), (8, 2259430), (10, 1807544), (16, 1129715), (20, 903772), (40, 451886), (80, 225943)]