1319820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{21997}}^1$

素因数の和:22009

約数の個数: 24

約数和(自身を含む): 3695664

約数和(自身を除く): 2375844

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 21997, 43994, 65991, 87988, 109985, 131982, 219970, 263964, 329955, 439940, 659910, 1319820]

約数ペア:

[(1, 1319820), (2, 659910), (3, 439940), (4, 329955), (5, 263964), (6, 219970), (10, 131982), (12, 109985), (15, 87988), (20, 65991), (30, 43994), (60, 21997)]