215564675

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:296

約数の個数: 48

約数和(自身を含む): 295293600

約数和(自身を除く): 79728925

約数列:

[1, 5, 17, 25, 41, 85, 89, 139, 205, 425, 445, 695, 697, 1025, 1513, 2225, 2363, 3475, 3485, 3649, 5699, 7565, 11815, 12371, 17425, 18245, 28495, 37825, 59075, 61855, 62033, 91225, 96883, 142475, 210307, 309275, 310165, 484415, 507211, 1051535, 1550825, 2422075, 2536055, 5257675, 8622587, 12680275, 43112935, 215564675]

約数ペア:

[(1, 215564675), (5, 43112935), (17, 12680275), (25, 8622587), (41, 5257675), (85, 2536055), (89, 2422075), (139, 1550825), (205, 1051535), (425, 507211), (445, 484415), (695, 310165), (697, 309275), (1025, 210307), (1513, 142475), (2225, 96883), (2363, 91225), (3475, 62033), (3485, 61855), (3649, 59075), (5699, 37825), (7565, 28495), (11815, 18245), (12371, 17425)]