66410020

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{37309}}^1$

素因数の和:37407

約数の個数: 24

約数和(自身を含む): 141031800

約数和(自身を除く): 74621780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 37309, 74618, 149236, 186545, 373090, 746180, 3320501, 6641002, 13282004, 16602505, 33205010, 66410020]

約数ペア:

[(1, 66410020), (2, 33205010), (4, 16602505), (5, 13282004), (10, 6641002), (20, 3320501), (89, 746180), (178, 373090), (356, 186545), (445, 149236), (890, 74618), (1780, 37309)]