2998500

素因数分解:

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

素因数の和:2021

約数の個数: 48

約数和(自身を含む): 8736000

約数和(自身を除く): 5737500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 125, 150, 250, 300, 375, 500, 750, 1500, 1999, 3998, 5997, 7996, 9995, 11994, 19990, 23988, 29985, 39980, 49975, 59970, 99950, 119940, 149925, 199900, 249875, 299850, 499750, 599700, 749625, 999500, 1499250, 2998500]

約数ペア:

[(1, 2998500), (2, 1499250), (3, 999500), (4, 749625), (5, 599700), (6, 499750), (10, 299850), (12, 249875), (15, 199900), (20, 149925), (25, 119940), (30, 99950), (50, 59970), (60, 49975), (75, 39980), (100, 29985), (125, 23988), (150, 19990), (250, 11994), (300, 9995), (375, 7996), (500, 5997), (750, 3998), (1500, 1999)]