15783640

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2003}}^1$

素因数の和:2211

約数の個数: 32

約数和(自身を含む): 35711280

約数和(自身を除く): 19927640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 2003, 3940, 4006, 7880, 8012, 10015, 16024, 20030, 40060, 80120, 394591, 789182, 1578364, 1972955, 3156728, 3945910, 7891820, 15783640]

約数ペア:

[(1, 15783640), (2, 7891820), (4, 3945910), (5, 3156728), (8, 1972955), (10, 1578364), (20, 789182), (40, 394591), (197, 80120), (394, 40060), (788, 20030), (985, 16024), (1576, 10015), (1970, 8012), (2003, 7880), (3940, 4006)]