128018560

素因数分解:

$2^7\times 5^1\times {\mathrm{200029}}^1$

素因数の和:200048

約数の個数: 32

約数和(自身を含む): 306045900

約数和(自身を除く): 178027340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 200029, 400058, 800116, 1000145, 1600232, 2000290, 3200464, 4000580, 6400928, 8001160, 12801856, 16002320, 25603712, 32004640, 64009280, 128018560]

約数ペア:

[(1, 128018560), (2, 64009280), (4, 32004640), (5, 25603712), (8, 16002320), (10, 12801856), (16, 8001160), (20, 6400928), (32, 4000580), (40, 3200464), (64, 2000290), (80, 1600232), (128, 1000145), (160, 800116), (320, 400058), (640, 200029)]