1999992040

素因数分解:

$2^3\times 5^1\times {\mathrm{49999801}}^1$

素因数の和:49999812

約数の個数: 16

約数和(自身を含む): 4499982180

約数和(自身を除く): 2499990140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 49999801, 99999602, 199999204, 249999005, 399998408, 499998010, 999996020, 1999992040]

約数ペア:

[(1, 1999992040), (2, 999996020), (4, 499998010), (5, 399998408), (8, 249999005), (10, 199999204), (20, 99999602), (40, 49999801)]