165485740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{168863}}^1$

素因数の和:168886

約数の個数: 36

約数和(自身を含む): 404260416

約数和(自身を除く): 238774676

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 168863, 337726, 675452, 844315, 1182041, 1688630, 2364082, 3377260, 4728164, 5910205, 8274287, 11820410, 16548574, 23640820, 33097148, 41371435, 82742870, 165485740]

約数ペア:

[(1, 165485740), (2, 82742870), (4, 41371435), (5, 33097148), (7, 23640820), (10, 16548574), (14, 11820410), (20, 8274287), (28, 5910205), (35, 4728164), (49, 3377260), (70, 2364082), (98, 1688630), (140, 1182041), (196, 844315), (245, 675452), (490, 337726), (980, 168863)]