128839204

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{79}}^2\times {\mathrm{397}}^1$

素因数の和:572

約数の個数: 36

約数和(自身を含む): 246544284

約数和(自身を除く): 117705080

約数列:

[1, 2, 4, 13, 26, 52, 79, 158, 316, 397, 794, 1027, 1588, 2054, 4108, 5161, 6241, 10322, 12482, 20644, 24964, 31363, 62726, 81133, 125452, 162266, 324532, 407719, 815438, 1630876, 2477677, 4955354, 9910708, 32209801, 64419602, 128839204]

約数ペア:

[(1, 128839204), (2, 64419602), (4, 32209801), (13, 9910708), (26, 4955354), (52, 2477677), (79, 1630876), (158, 815438), (316, 407719), (397, 324532), (794, 162266), (1027, 125452), (1588, 81133), (2054, 62726), (4108, 31363), (5161, 24964), (6241, 20644), (10322, 12482)]