30804510040

素因数分解:

$2^3\times 5^1\times {\mathrm{1999}}^1\times {\mathrm{385249}}^1$

素因数の和:387259

約数の個数: 32

約数和(自身を含む): 69345000000

約数和(自身を除く): 38540489960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1999, 3998, 7996, 9995, 15992, 19990, 39980, 79960, 385249, 770498, 1540996, 1926245, 3081992, 3852490, 7704980, 15409960, 770112751, 1540225502, 3080451004, 3850563755, 6160902008, 7701127510, 15402255020, 30804510040]

約数ペア:

[(1, 30804510040), (2, 15402255020), (4, 7701127510), (5, 6160902008), (8, 3850563755), (10, 3080451004), (20, 1540225502), (40, 770112751), (1999, 15409960), (3998, 7704980), (7996, 3852490), (9995, 3081992), (15992, 1926245), (19990, 1540996), (39980, 770498), (79960, 385249)]