159768640

素因数分解:

$2^6\times 5^1\times {\mathrm{499277}}^1$

素因数の和:499294

約数の個数: 28

約数和(自身を含む): 380449836

約数和(自身を除く): 220681196

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 499277, 998554, 1997108, 2496385, 3994216, 4992770, 7988432, 9985540, 15976864, 19971080, 31953728, 39942160, 79884320, 159768640]

約数ペア:

[(1, 159768640), (2, 79884320), (4, 39942160), (5, 31953728), (8, 19971080), (10, 15976864), (16, 9985540), (20, 7988432), (32, 4992770), (40, 3994216), (64, 2496385), (80, 1997108), (160, 998554), (320, 499277)]