399933070

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{449363}}^1$

素因数の和:449459

約数の個数: 16

約数和(自身を含む): 727969680

約数和(自身を除く): 328036610

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 449363, 898726, 2246815, 4493630, 39993307, 79986614, 199966535, 399933070]

約数ペア:

[(1, 399933070), (2, 199966535), (5, 79986614), (10, 39993307), (89, 4493630), (178, 2246815), (445, 898726), (890, 449363)]