39386540

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{27737}}^1$

素因数の和:27817

約数の個数: 24

約数和(自身を含む): 83879712

約数和(自身を除く): 44493172

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 27737, 55474, 110948, 138685, 277370, 554740, 1969327, 3938654, 7877308, 9846635, 19693270, 39386540]

約数ペア:

[(1, 39386540), (2, 19693270), (4, 9846635), (5, 7877308), (10, 3938654), (20, 1969327), (71, 554740), (142, 277370), (284, 138685), (355, 110948), (710, 55474), (1420, 27737)]