1311213292280

素因数分解:

$2^3\times 5^1\times {\mathrm{32780332307}}^1$

素因数の和:32780332318

約数の個数: 16

約数和(自身を含む): 2950229907720

約数和(自身を除く): 1639016615440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 32780332307, 65560664614, 131121329228, 163901661535, 262242658456, 327803323070, 655606646140, 1311213292280]

約数ペア:

[(1, 1311213292280), (2, 655606646140), (4, 327803323070), (5, 262242658456), (8, 163901661535), (10, 131121329228), (20, 65560664614), (40, 32780332307)]