20494120

素因数分解:

$2^3\times 5^1\times {\mathrm{512353}}^1$

素因数の和:512364

約数の個数: 16

約数和(自身を含む): 46111860

約数和(自身を除く): 25617740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 512353, 1024706, 2049412, 2561765, 4098824, 5123530, 10247060, 20494120]

約数ペア:

[(1, 20494120), (2, 10247060), (4, 5123530), (5, 4098824), (8, 2561765), (10, 2049412), (20, 1024706), (40, 512353)]