128432816

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{131591}}^1$

素因数の和:131660

約数の個数: 20

約数和(自身を含む): 252919824

約数和(自身を除く): 124487008

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 131591, 263182, 526364, 1052728, 2105456, 8027051, 16054102, 32108204, 64216408, 128432816]

約数ペア:

[(1, 128432816), (2, 64216408), (4, 32108204), (8, 16054102), (16, 8027051), (61, 2105456), (122, 1052728), (244, 526364), (488, 263182), (976, 131591)]