81664828

素因数分解:

$2^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{36919}}^1$

素因数の和:37009

約数の個数: 24

約数和(自身を含む): 165401600

約数和(自身を除く): 83736772

約数列:

[1, 2, 4, 7, 14, 28, 79, 158, 316, 553, 1106, 2212, 36919, 73838, 147676, 258433, 516866, 1033732, 2916601, 5833202, 11666404, 20416207, 40832414, 81664828]

約数ペア:

[(1, 81664828), (2, 40832414), (4, 20416207), (7, 11666404), (14, 5833202), (28, 2916601), (79, 1033732), (158, 516866), (316, 258433), (553, 147676), (1106, 73838), (2212, 36919)]