138640124

素因数分解:

$2^2\times 7^1\times {\mathrm{173}}^1\times {\mathrm{28621}}^1$

素因数の和:28805

約数の個数: 24

約数和(自身を含む): 278892768

約数和(自身を除く): 140252644

約数列:

[1, 2, 4, 7, 14, 28, 173, 346, 692, 1211, 2422, 4844, 28621, 57242, 114484, 200347, 400694, 801388, 4951433, 9902866, 19805732, 34660031, 69320062, 138640124]

約数ペア:

[(1, 138640124), (2, 69320062), (4, 34660031), (7, 19805732), (14, 9902866), (28, 4951433), (173, 801388), (346, 400694), (692, 200347), (1211, 114484), (2422, 57242), (4844, 28621)]