20281855

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{499}}^1\times {\mathrm{739}}^1$

素因数の和:1254

約数の個数: 16

約数和(自身を含む): 26640000

約数和(自身を除く): 6358145

約数列:

[1, 5, 11, 55, 499, 739, 2495, 3695, 5489, 8129, 27445, 40645, 368761, 1843805, 4056371, 20281855]

約数ペア:

[(1, 20281855), (5, 4056371), (11, 1843805), (55, 368761), (499, 40645), (739, 27445), (2495, 8129), (3695, 5489)]