12680275

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:279

約数の個数: 24

約数和(自身を含む): 16405200

約数和(自身を除く): 3724925

約数列:

[1, 5, 25, 41, 89, 139, 205, 445, 695, 1025, 2225, 3475, 3649, 5699, 12371, 18245, 28495, 61855, 91225, 142475, 309275, 507211, 2536055, 12680275]

約数ペア:

[(1, 12680275), (5, 2536055), (25, 507211), (41, 309275), (89, 142475), (139, 91225), (205, 61855), (445, 28495), (695, 18245), (1025, 12371), (2225, 5699), (3475, 3649)]