80657269

素因数分解:

$7^1\times {\mathrm{11}}^4\times {\mathrm{787}}^1$

素因数の和:838

約数の個数: 20

約数和(自身を含む): 101525920

約数和(自身を除く): 20868651

約数列:

[1, 7, 11, 77, 121, 787, 847, 1331, 5509, 8657, 9317, 14641, 60599, 95227, 102487, 666589, 1047497, 7332479, 11522467, 80657269]

約数ペア:

[(1, 80657269), (7, 11522467), (11, 7332479), (77, 1047497), (121, 666589), (787, 102487), (847, 95227), (1331, 60599), (5509, 14641), (8657, 9317)]