81960268

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{263}}^1\times {\mathrm{461}}^1$

素因数の和:754

約数の個数: 36

約数和(自身を含む): 156241008

約数和(自身を除く): 74280740

約数列:

[1, 2, 4, 13, 26, 52, 169, 263, 338, 461, 526, 676, 922, 1052, 1844, 3419, 5993, 6838, 11986, 13676, 23972, 44447, 77909, 88894, 121243, 155818, 177788, 242486, 311636, 484972, 1576159, 3152318, 6304636, 20490067, 40980134, 81960268]

約数ペア:

[(1, 81960268), (2, 40980134), (4, 20490067), (13, 6304636), (26, 3152318), (52, 1576159), (169, 484972), (263, 311636), (338, 242486), (461, 177788), (526, 155818), (676, 121243), (922, 88894), (1052, 77909), (1844, 44447), (3419, 23972), (5993, 13676), (6838, 11986)]