201720260

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{205837}}^1$

素因数の和:205860

約数の個数: 36

約数和(自身を含む): 492776172

約数和(自身を除く): 291055912

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 205837, 411674, 823348, 1029185, 1440859, 2058370, 2881718, 4116740, 5763436, 7204295, 10086013, 14408590, 20172026, 28817180, 40344052, 50430065, 100860130, 201720260]

約数ペア:

[(1, 201720260), (2, 100860130), (4, 50430065), (5, 40344052), (7, 28817180), (10, 20172026), (14, 14408590), (20, 10086013), (28, 7204295), (35, 5763436), (49, 4116740), (70, 2881718), (98, 2058370), (140, 1440859), (196, 1029185), (245, 823348), (490, 411674), (980, 205837)]