25870005

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{4831}}^1$

素因数の和:4866

約数の個数: 48

約数和(自身を含む): 54273024

約数和(自身を除く): 28403019

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 35, 45, 51, 63, 85, 105, 119, 153, 255, 315, 357, 595, 765, 1071, 1785, 4831, 5355, 14493, 24155, 33817, 43479, 72465, 82127, 101451, 169085, 217395, 246381, 304353, 410635, 507255, 574889, 739143, 1231905, 1521765, 1724667, 2874445, 3695715, 5174001, 8623335, 25870005]

約数ペア:

[(1, 25870005), (3, 8623335), (5, 5174001), (7, 3695715), (9, 2874445), (15, 1724667), (17, 1521765), (21, 1231905), (35, 739143), (45, 574889), (51, 507255), (63, 410635), (85, 304353), (105, 246381), (119, 217395), (153, 169085), (255, 101451), (315, 82127), (357, 72465), (595, 43479), (765, 33817), (1071, 24155), (1785, 14493), (4831, 5355)]