18840160

素因数分解:

$2^5\times 5^1\times {\mathrm{117751}}^1$

素因数の和:117766

約数の個数: 24

約数和(自身を含む): 44510256

約数和(自身を除く): 25670096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 117751, 235502, 471004, 588755, 942008, 1177510, 1884016, 2355020, 3768032, 4710040, 9420080, 18840160]

約数ペア:

[(1, 18840160), (2, 9420080), (4, 4710040), (5, 3768032), (8, 2355020), (10, 1884016), (16, 1177510), (20, 942008), (32, 588755), (40, 471004), (80, 235502), (160, 117751)]