128615284

素因数分解:

$2^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{42929}}^1$

素因数の和:43047

約数の個数: 24

約数和(自身を含む): 259640640

約数和(自身を除く): 131025356

約数列:

[1, 2, 4, 7, 14, 28, 107, 214, 428, 749, 1498, 2996, 42929, 85858, 171716, 300503, 601006, 1202012, 4593403, 9186806, 18373612, 32153821, 64307642, 128615284]

約数ペア:

[(1, 128615284), (2, 64307642), (4, 32153821), (7, 18373612), (14, 9186806), (28, 4593403), (107, 1202012), (214, 601006), (428, 300503), (749, 171716), (1498, 85858), (2996, 42929)]