18489620

素因数分解:

$2^2\times 5^1\times {\mathrm{751}}^1\times {\mathrm{1231}}^1$

素因数の和:1991

約数の個数: 24

約数和(自身を含む): 38911488

約数和(自身を除く): 20421868

約数列:

[1, 2, 4, 5, 10, 20, 751, 1231, 1502, 2462, 3004, 3755, 4924, 6155, 7510, 12310, 15020, 24620, 924481, 1848962, 3697924, 4622405, 9244810, 18489620]

約数ペア:

[(1, 18489620), (2, 9244810), (4, 4622405), (5, 3697924), (10, 1848962), (20, 924481), (751, 24620), (1231, 15020), (1502, 12310), (2462, 7510), (3004, 6155), (3755, 4924)]