20804535760

素因数分解:

$2^4\times 5^1\times {\mathrm{260056697}}^1$

素因数の和:260056710

約数の個数: 20

約数和(自身を含む): 48370545828

約数和(自身を除く): 27566010068

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 260056697, 520113394, 1040226788, 1300283485, 2080453576, 2600566970, 4160907152, 5201133940, 10402267880, 20804535760]

約数ペア:

[(1, 20804535760), (2, 10402267880), (4, 5201133940), (5, 4160907152), (8, 2600566970), (10, 2080453576), (16, 1300283485), (20, 1040226788), (40, 520113394), (80, 260056697)]