20012770

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^2\times {\mathrm{397}}^1$

素因数の和:546

約数の個数: 24

約数和(自身を含む): 36629532

約数和(自身を除く): 16616762

約数列:

[1, 2, 5, 10, 71, 142, 355, 397, 710, 794, 1985, 3970, 5041, 10082, 25205, 28187, 50410, 56374, 140935, 281870, 2001277, 4002554, 10006385, 20012770]

約数ペア:

[(1, 20012770), (2, 10006385), (5, 4002554), (10, 2001277), (71, 281870), (142, 140935), (355, 56374), (397, 50410), (710, 28187), (794, 25205), (1985, 10082), (3970, 5041)]