99870040

素因数分解:

$2^3\times 5^1\times {\mathrm{1249}}^1\times {\mathrm{1999}}^1$

素因数の和:3259

約数の個数: 32

約数和(自身を含む): 225000000

約数和(自身を除く): 125129960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1249, 1999, 2498, 3998, 4996, 6245, 7996, 9992, 9995, 12490, 15992, 19990, 24980, 39980, 49960, 79960, 2496751, 4993502, 9987004, 12483755, 19974008, 24967510, 49935020, 99870040]

約数ペア:

[(1, 99870040), (2, 49935020), (4, 24967510), (5, 19974008), (8, 12483755), (10, 9987004), (20, 4993502), (40, 2496751), (1249, 79960), (1999, 49960), (2498, 39980), (3998, 24980), (4996, 19990), (6245, 15992), (7996, 12490), (9992, 9995)]