20369080

素因数分解:

$2^3\times 5^1\times {\mathrm{509227}}^1$

素因数の和:509238

約数の個数: 16

約数和(自身を含む): 45830520

約数和(自身を除く): 25461440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 509227, 1018454, 2036908, 2546135, 4073816, 5092270, 10184540, 20369080]

約数ペア:

[(1, 20369080), (2, 10184540), (4, 5092270), (5, 4073816), (8, 2546135), (10, 2036908), (20, 1018454), (40, 509227)]