138161456

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{121621}}^1$

素因数の和:121700

約数の個数: 20

約数和(自身を含む): 271460304

約数和(自身を除く): 133298848

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 121621, 243242, 486484, 972968, 1945936, 8635091, 17270182, 34540364, 69080728, 138161456]

約数ペア:

[(1, 138161456), (2, 69080728), (4, 34540364), (8, 17270182), (16, 8635091), (71, 1945936), (142, 972968), (284, 486484), (568, 243242), (1136, 121621)]