138337780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{141161}}^1$

素因数の和:141184

約数の個数: 36

約数和(自身を含む): 337941828

約数和(自身を除く): 199604048

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 141161, 282322, 564644, 705805, 988127, 1411610, 1976254, 2823220, 3952508, 4940635, 6916889, 9881270, 13833778, 19762540, 27667556, 34584445, 69168890, 138337780]

約数ペア:

[(1, 138337780), (2, 69168890), (4, 34584445), (5, 27667556), (7, 19762540), (10, 13833778), (14, 9881270), (20, 6916889), (28, 4940635), (35, 3952508), (49, 2823220), (70, 1976254), (98, 1411610), (140, 988127), (196, 705805), (245, 564644), (490, 282322), (980, 141161)]