81209708

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{654917}}^1$

素因数の和:654952

約数の個数: 12

約数和(自身を含む): 146701632

約数和(自身を除く): 65491924

約数列:

[1, 2, 4, 31, 62, 124, 654917, 1309834, 2619668, 20302427, 40604854, 81209708]

約数ペア:

[(1, 81209708), (2, 40604854), (4, 20302427), (31, 2619668), (62, 1309834), (124, 654917)]