18308980

素因数分解:

$2^2\times 5^1\times {\mathrm{937}}^1\times {\mathrm{977}}^1$

素因数の和:1923

約数の個数: 24

約数和(自身を含む): 38529288

約数和(自身を除く): 20220308

約数列:

[1, 2, 4, 5, 10, 20, 937, 977, 1874, 1954, 3748, 3908, 4685, 4885, 9370, 9770, 18740, 19540, 915449, 1830898, 3661796, 4577245, 9154490, 18308980]

約数ペア:

[(1, 18308980), (2, 9154490), (4, 4577245), (5, 3661796), (10, 1830898), (20, 915449), (937, 19540), (977, 18740), (1874, 9770), (1954, 9370), (3748, 4885), (3908, 4685)]