28870205

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{593}}^1$

素因数の和:725

約数の個数: 32

約数和(自身を含む): 43110144

約数和(自身を除く): 14239939

約数列:

[1, 5, 7, 13, 35, 65, 91, 107, 455, 535, 593, 749, 1391, 2965, 3745, 4151, 6955, 7709, 9737, 20755, 38545, 48685, 53963, 63451, 269815, 317255, 444157, 824863, 2220785, 4124315, 5774041, 28870205]

約数ペア:

[(1, 28870205), (5, 5774041), (7, 4124315), (13, 2220785), (35, 824863), (65, 444157), (91, 317255), (107, 269815), (455, 63451), (535, 53963), (593, 48685), (749, 38545), (1391, 20755), (2965, 9737), (3745, 7709), (4151, 6955)]