127978292

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{31}}^2\times {\mathrm{197}}^1$

素因数の和:289

約数の個数: 54

約数和(自身を含む): 251862534

約数和(自身を除く): 123884242

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 169, 197, 338, 394, 403, 676, 788, 806, 961, 1612, 1922, 2561, 3844, 5122, 5239, 6107, 10244, 10478, 12214, 12493, 20956, 24428, 24986, 33293, 49972, 66586, 79391, 133172, 158782, 162409, 189317, 317564, 324818, 378634, 649636, 757268, 1032083, 2064166, 2461121, 4128332, 4922242, 9844484, 31994573, 63989146, 127978292]

約数ペア:

[(1, 127978292), (2, 63989146), (4, 31994573), (13, 9844484), (26, 4922242), (31, 4128332), (52, 2461121), (62, 2064166), (124, 1032083), (169, 757268), (197, 649636), (338, 378634), (394, 324818), (403, 317564), (676, 189317), (788, 162409), (806, 158782), (961, 133172), (1612, 79391), (1922, 66586), (2561, 49972), (3844, 33293), (5122, 24986), (5239, 24428), (6107, 20956), (10244, 12493), (10478, 12214)]