81914872

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{2803}}^1$

素因数の和:3103

約数の個数: 32

約数和(自身を含む): 166052880

約数和(自身を除く): 84138008

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 281, 562, 1124, 2248, 2803, 3653, 5606, 7306, 11212, 14612, 22424, 29224, 36439, 72878, 145756, 291512, 787643, 1575286, 3150572, 6301144, 10239359, 20478718, 40957436, 81914872]

約数ペア:

[(1, 81914872), (2, 40957436), (4, 20478718), (8, 10239359), (13, 6301144), (26, 3150572), (52, 1575286), (104, 787643), (281, 291512), (562, 145756), (1124, 72878), (2248, 36439), (2803, 29224), (3653, 22424), (5606, 14612), (7306, 11212)]