1291081415

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{443}}^1\times {\mathrm{3449}}^1$

素因数の和:3923

約数の個数: 24

約数和(自身を含む): 1681916400

約数和(自身を除く): 390834985

約数列:

[1, 5, 13, 65, 169, 443, 845, 2215, 3449, 5759, 17245, 28795, 44837, 74867, 224185, 374335, 582881, 1527907, 2914405, 7639535, 19862791, 99313955, 258216283, 1291081415]

約数ペア:

[(1, 1291081415), (5, 258216283), (13, 99313955), (65, 19862791), (169, 7639535), (443, 2914405), (845, 1527907), (2215, 582881), (3449, 374335), (5759, 224185), (17245, 74867), (28795, 44837)]