86705480

素因数分解:

$2^3\times 5^1\times {\mathrm{487}}^1\times {\mathrm{4451}}^1$

素因数の和:4949

約数の個数: 32

約数和(自身を含む): 195531840

約数和(自身を除く): 108826360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 487, 974, 1948, 2435, 3896, 4451, 4870, 8902, 9740, 17804, 19480, 22255, 35608, 44510, 89020, 178040, 2167637, 4335274, 8670548, 10838185, 17341096, 21676370, 43352740, 86705480]

約数ペア:

[(1, 86705480), (2, 43352740), (4, 21676370), (5, 17341096), (8, 10838185), (10, 8670548), (20, 4335274), (40, 2167637), (487, 178040), (974, 89020), (1948, 44510), (2435, 35608), (3896, 22255), (4451, 19480), (4870, 17804), (8902, 9740)]