81708744

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{261887}}^1$

素因数の和:261909

約数の個数: 32

約数和(自身を含む): 219985920

約数和(自身を除く): 138277176

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 261887, 523774, 785661, 1047548, 1571322, 2095096, 3142644, 3404531, 6285288, 6809062, 10213593, 13618124, 20427186, 27236248, 40854372, 81708744]

約数ペア:

[(1, 81708744), (2, 40854372), (3, 27236248), (4, 20427186), (6, 13618124), (8, 10213593), (12, 6809062), (13, 6285288), (24, 3404531), (26, 3142644), (39, 2095096), (52, 1571322), (78, 1047548), (104, 785661), (156, 523774), (312, 261887)]