81720756

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{174617}}^1$

素因数の和:174640

約数の個数: 36

約数和(自身を含む): 222463332

約数和(自身を除く): 140742576

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 174617, 349234, 523851, 698468, 1047702, 1571553, 2095404, 2270021, 3143106, 4540042, 6286212, 6810063, 9080084, 13620126, 20430189, 27240252, 40860378, 81720756]

約数ペア:

[(1, 81720756), (2, 40860378), (3, 27240252), (4, 20430189), (6, 13620126), (9, 9080084), (12, 6810063), (13, 6286212), (18, 4540042), (26, 3143106), (36, 2270021), (39, 2095404), (52, 1571553), (78, 1047702), (117, 698468), (156, 523851), (234, 349234), (468, 174617)]