71248420

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{82847}}^1$

素因数の和:82899

約数の個数: 24

約数和(自身を含む): 153103104

約数和(自身を除く): 81854684

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 82847, 165694, 331388, 414235, 828470, 1656940, 3562421, 7124842, 14249684, 17812105, 35624210, 71248420]

約数ペア:

[(1, 71248420), (2, 35624210), (4, 17812105), (5, 14249684), (10, 7124842), (20, 3562421), (43, 1656940), (86, 828470), (172, 414235), (215, 331388), (430, 165694), (860, 82847)]