31488140

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{16231}}^1$

素因数の和:16337

約数の個数: 24

約数和(自身を含む): 66810912

約数和(自身を除く): 35322772

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 16231, 32462, 64924, 81155, 162310, 324620, 1574407, 3148814, 6297628, 7872035, 15744070, 31488140]

約数ペア:

[(1, 31488140), (2, 15744070), (4, 7872035), (5, 6297628), (10, 3148814), (20, 1574407), (97, 324620), (194, 162310), (388, 81155), (485, 64924), (970, 32462), (1940, 16231)]