71149480

素因数分解:

$2^3\times 5^1\times {\mathrm{431}}^1\times {\mathrm{4127}}^1$

素因数の和:4569

約数の個数: 32

約数和(自身を含む): 160496640

約数和(自身を除く): 89347160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 431, 862, 1724, 2155, 3448, 4127, 4310, 8254, 8620, 16508, 17240, 20635, 33016, 41270, 82540, 165080, 1778737, 3557474, 7114948, 8893685, 14229896, 17787370, 35574740, 71149480]

約数ペア:

[(1, 71149480), (2, 35574740), (4, 17787370), (5, 14229896), (8, 8893685), (10, 7114948), (20, 3557474), (40, 1778737), (431, 165080), (862, 82540), (1724, 41270), (2155, 33016), (3448, 20635), (4127, 17240), (4310, 16508), (8254, 8620)]