19771880

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{4799}}^1$

素因数の和:4913

約数の個数: 32

約数和(自身を含む): 44928000

約数和(自身を除く): 25156120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 4799, 9598, 19196, 23995, 38392, 47990, 95980, 191960, 494297, 988594, 1977188, 2471485, 3954376, 4942970, 9885940, 19771880]

約数ペア:

[(1, 19771880), (2, 9885940), (4, 4942970), (5, 3954376), (8, 2471485), (10, 1977188), (20, 988594), (40, 494297), (103, 191960), (206, 95980), (412, 47990), (515, 38392), (824, 23995), (1030, 19196), (2060, 9598), (4120, 4799)]