128440160

素因数分解:

$2^5\times 5^1\times {\mathrm{802751}}^1$

素因数の和:802766

約数の個数: 24

約数和(自身を含む): 303440256

約数和(自身を除く): 175000096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 802751, 1605502, 3211004, 4013755, 6422008, 8027510, 12844016, 16055020, 25688032, 32110040, 64220080, 128440160]

約数ペア:

[(1, 128440160), (2, 64220080), (4, 32110040), (5, 25688032), (8, 16055020), (10, 12844016), (16, 8027510), (20, 6422008), (32, 4013755), (40, 3211004), (80, 1605502), (160, 802751)]