664759870

素因数分解:

$2^1\times 5^1\times {\mathrm{487}}^1\times {\mathrm{136501}}^1$

素因数の和:136995

約数の個数: 16

約数和(自身を含む): 1199033568

約数和(自身を除く): 534273698

約数列:

[1, 2, 5, 10, 487, 974, 2435, 4870, 136501, 273002, 682505, 1365010, 66475987, 132951974, 332379935, 664759870]

約数ペア:

[(1, 664759870), (2, 332379935), (5, 132951974), (10, 66475987), (487, 1365010), (974, 682505), (2435, 273002), (4870, 136501)]