27720040

素因数分解:

$2^3\times 5^1\times {\mathrm{487}}^1\times {\mathrm{1423}}^1$

素因数の和:1921

約数の個数: 32

約数和(自身を含む): 62542080

約数和(自身を除く): 34822040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 487, 974, 1423, 1948, 2435, 2846, 3896, 4870, 5692, 7115, 9740, 11384, 14230, 19480, 28460, 56920, 693001, 1386002, 2772004, 3465005, 5544008, 6930010, 13860020, 27720040]

約数ペア:

[(1, 27720040), (2, 13860020), (4, 6930010), (5, 5544008), (8, 3465005), (10, 2772004), (20, 1386002), (40, 693001), (487, 56920), (974, 28460), (1423, 19480), (1948, 14230), (2435, 11384), (2846, 9740), (3896, 7115), (4870, 5692)]