26380040

素因数分解:

$2^3\times 5^1\times {\mathrm{659501}}^1$

素因数の和:659512

約数の個数: 16

約数和(自身を含む): 59355180

約数和(自身を除く): 32975140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 659501, 1319002, 2638004, 3297505, 5276008, 6595010, 13190020, 26380040]

約数ペア:

[(1, 26380040), (2, 13190020), (4, 6595010), (5, 5276008), (8, 3297505), (10, 2638004), (20, 1319002), (40, 659501)]