2639640

素因数分解:

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

素因数の和:22011

約数の個数: 32

約数和(自身を含む): 7919280

約数和(自身を除く): 5279640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 21997, 43994, 65991, 87988, 109985, 131982, 175976, 219970, 263964, 329955, 439940, 527928, 659910, 879880, 1319820, 2639640]

約数ペア:

[(1, 2639640), (2, 1319820), (3, 879880), (4, 659910), (5, 527928), (6, 439940), (8, 329955), (10, 263964), (12, 219970), (15, 175976), (20, 131982), (24, 109985), (30, 87988), (40, 65991), (60, 43994), (120, 21997)]