636427840

素因数分解:

$2^6\times 5^1\times {\mathrm{1988837}}^1$

素因数の和:1988854

約数の個数: 28

約数和(自身を含む): 1515494556

約数和(自身を除く): 879066716

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 1988837, 3977674, 7955348, 9944185, 15910696, 19888370, 31821392, 39776740, 63642784, 79553480, 127285568, 159106960, 318213920, 636427840]

約数ペア:

[(1, 636427840), (2, 318213920), (4, 159106960), (5, 127285568), (8, 79553480), (10, 63642784), (16, 39776740), (20, 31821392), (32, 19888370), (40, 15910696), (64, 9944185), (80, 7955348), (160, 3977674), (320, 1988837)]