18735820

素因数分解:

$2^2\times 5^1\times {\mathrm{761}}^1\times {\mathrm{1231}}^1$

素因数の和:2001

約数の個数: 24

約数和(自身を含む): 39428928

約数和(自身を除く): 20693108

約数列:

[1, 2, 4, 5, 10, 20, 761, 1231, 1522, 2462, 3044, 3805, 4924, 6155, 7610, 12310, 15220, 24620, 936791, 1873582, 3747164, 4683955, 9367910, 18735820]

約数ペア:

[(1, 18735820), (2, 9367910), (4, 4683955), (5, 3747164), (10, 1873582), (20, 936791), (761, 24620), (1231, 15220), (1522, 12310), (2462, 7610), (3044, 6155), (3805, 4924)]