1605680

素因数分解:

$2^4\times 5^1\times {\mathrm{20071}}^1$

素因数の和:20084

約数の個数: 20

約数和(自身を含む): 3733392

約数和(自身を除く): 2127712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 20071, 40142, 80284, 100355, 160568, 200710, 321136, 401420, 802840, 1605680]

約数ペア:

[(1, 1605680), (2, 802840), (4, 401420), (5, 321136), (8, 200710), (10, 160568), (16, 100355), (20, 80284), (40, 40142), (80, 20071)]