208517855

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{4283}}^1$

素因数の和:4415

約数の個数: 32

約数和(自身を含む): 310915584

約数和(自身を除く): 102397729

約数列:

[1, 5, 7, 13, 35, 65, 91, 107, 455, 535, 749, 1391, 3745, 4283, 6955, 9737, 21415, 29981, 48685, 55679, 149905, 278395, 389753, 458281, 1948765, 2291405, 3207967, 5957653, 16039835, 29788265, 41703571, 208517855]

約数ペア:

[(1, 208517855), (5, 41703571), (7, 29788265), (13, 16039835), (35, 5957653), (65, 3207967), (91, 2291405), (107, 1948765), (455, 458281), (535, 389753), (749, 278395), (1391, 149905), (3745, 55679), (4283, 48685), (6955, 29981), (9737, 21415)]