128216120

素因数分解:

$2^3\times 5^1\times {\mathrm{3205403}}^1$

素因数の和:3205414

約数の個数: 16

約数和(自身を含む): 288486360

約数和(自身を除く): 160270240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3205403, 6410806, 12821612, 16027015, 25643224, 32054030, 64108060, 128216120]

約数ペア:

[(1, 128216120), (2, 64108060), (4, 32054030), (5, 25643224), (8, 16027015), (10, 12821612), (20, 6410806), (40, 3205403)]