131212280

素因数分解:

$2^3\times 5^1\times {\mathrm{3280307}}^1$

素因数の和:3280318

約数の個数: 16

約数和(自身を含む): 295227720

約数和(自身を除く): 164015440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3280307, 6560614, 13121228, 16401535, 26242456, 32803070, 65606140, 131212280]

約数ペア:

[(1, 131212280), (2, 65606140), (4, 32803070), (5, 26242456), (8, 16401535), (10, 13121228), (20, 6560614), (40, 3280307)]