31671280

素因数分解:

$2^4\times 5^1\times {\mathrm{395891}}^1$

素因数の和:395904

約数の個数: 20

約数和(自身を含む): 73635912

約数和(自身を除く): 41964632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 395891, 791782, 1583564, 1979455, 3167128, 3958910, 6334256, 7917820, 15835640, 31671280]

約数ペア:

[(1, 31671280), (2, 15835640), (4, 7917820), (5, 6334256), (8, 3958910), (10, 3167128), (16, 1979455), (20, 1583564), (40, 791782), (80, 395891)]