13639760

素因数分解:

$2^4\times 5^1\times {\mathrm{170497}}^1$

素因数の和:170510

約数の個数: 20

約数和(自身を含む): 31712628

約数和(自身を除く): 18072868

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 170497, 340994, 681988, 852485, 1363976, 1704970, 2727952, 3409940, 6819880, 13639760]

約数ペア:

[(1, 13639760), (2, 6819880), (4, 3409940), (5, 2727952), (8, 1704970), (10, 1363976), (16, 852485), (20, 681988), (40, 340994), (80, 170497)]