2758620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1999}}^1$

素因数の和:2034

約数の個数: 48

約数和(自身を含む): 8064000

約数和(自身を除く): 5305380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380, 1999, 3998, 5997, 7996, 9995, 11994, 19990, 23988, 29985, 39980, 45977, 59970, 91954, 119940, 137931, 183908, 229885, 275862, 459770, 551724, 689655, 919540, 1379310, 2758620]

約数ペア:

[(1, 2758620), (2, 1379310), (3, 919540), (4, 689655), (5, 551724), (6, 459770), (10, 275862), (12, 229885), (15, 183908), (20, 137931), (23, 119940), (30, 91954), (46, 59970), (60, 45977), (69, 39980), (92, 29985), (115, 23988), (138, 19990), (230, 11994), (276, 9995), (345, 7996), (460, 5997), (690, 3998), (1380, 1999)]