86639640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{721997}}^1$

素因数の和:722011

約数の個数: 32

約数和(自身を含む): 259919280

約数和(自身を除く): 173279640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 721997, 1443994, 2165991, 2887988, 3609985, 4331982, 5775976, 7219970, 8663964, 10829955, 14439940, 17327928, 21659910, 28879880, 43319820, 86639640]

約数ペア:

[(1, 86639640), (2, 43319820), (3, 28879880), (4, 21659910), (5, 17327928), (6, 14439940), (8, 10829955), (10, 8663964), (12, 7219970), (15, 5775976), (20, 4331982), (24, 3609985), (30, 2887988), (40, 2165991), (60, 1443994), (120, 721997)]