66976060

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1\times {\mathrm{197}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 143700480

約数和(自身を除く): 76724420

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 191, 197, 356, 382, 394, 445, 764, 788, 890, 955, 985, 1780, 1910, 1970, 3820, 3940, 16999, 17533, 33998, 35066, 37627, 67996, 70132, 75254, 84995, 87665, 150508, 169990, 175330, 188135, 339980, 350660, 376270, 752540, 3348803, 6697606, 13395212, 16744015, 33488030, 66976060]

約数ペア:

[(1, 66976060), (2, 33488030), (4, 16744015), (5, 13395212), (10, 6697606), (20, 3348803), (89, 752540), (178, 376270), (191, 350660), (197, 339980), (356, 188135), (382, 175330), (394, 169990), (445, 150508), (764, 87665), (788, 84995), (890, 75254), (955, 70132), (985, 67996), (1780, 37627), (1910, 35066), (1970, 33998), (3820, 17533), (3940, 16999)]