211671280

素因数分解:

$2^4\times 5^1\times {\mathrm{2645891}}^1$

素因数の和:2645904

約数の個数: 20

約数和(自身を含む): 492135912

約数和(自身を除く): 280464632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2645891, 5291782, 10583564, 13229455, 21167128, 26458910, 42334256, 52917820, 105835640, 211671280]

約数ペア:

[(1, 211671280), (2, 105835640), (4, 52917820), (5, 42334256), (8, 26458910), (10, 21167128), (16, 13229455), (20, 10583564), (40, 5291782), (80, 2645891)]