128839004

素因数分解:

$2^2\times 7^1\times {\mathrm{823}}^1\times {\mathrm{5591}}^1$

素因数の和:6425

約数の個数: 24

約数和(自身を含む): 258037248

約数和(自身を除く): 129198244

約数列:

[1, 2, 4, 7, 14, 28, 823, 1646, 3292, 5591, 5761, 11182, 11522, 22364, 23044, 39137, 78274, 156548, 4601393, 9202786, 18405572, 32209751, 64419502, 128839004]

約数ペア:

[(1, 128839004), (2, 64419502), (4, 32209751), (7, 18405572), (14, 9202786), (28, 4601393), (823, 156548), (1646, 78274), (3292, 39137), (5591, 23044), (5761, 22364), (11182, 11522)]