81871868

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{50789}}^1$

素因数の和:50837

約数の個数: 24

約数和(自身を含む): 159277440

約数和(自身を除く): 77405572

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612, 50789, 101578, 203156, 660257, 1320514, 1574459, 2641028, 3148918, 6297836, 20467967, 40935934, 81871868]

約数ペア:

[(1, 81871868), (2, 40935934), (4, 20467967), (13, 6297836), (26, 3148918), (31, 2641028), (52, 1574459), (62, 1320514), (124, 660257), (403, 203156), (806, 101578), (1612, 50789)]