66814864

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{40543}}^1$

素因数の和:40654

約数の個数: 20

約数和(自身を含む): 130713856

約数和(自身を除く): 63898992

約数列:

[1, 2, 4, 8, 16, 103, 206, 412, 824, 1648, 40543, 81086, 162172, 324344, 648688, 4175929, 8351858, 16703716, 33407432, 66814864]

約数ペア:

[(1, 66814864), (2, 33407432), (4, 16703716), (8, 8351858), (16, 4175929), (103, 648688), (206, 324344), (412, 162172), (824, 81086), (1648, 40543)]