20178756

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{43117}}^1$

素因数の和:43140

約数の個数: 36

約数和(自身を含む): 54932332

約数和(自身を除く): 34753576

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 43117, 86234, 129351, 172468, 258702, 388053, 517404, 560521, 776106, 1121042, 1552212, 1681563, 2242084, 3363126, 5044689, 6726252, 10089378, 20178756]

約数ペア:

[(1, 20178756), (2, 10089378), (3, 6726252), (4, 5044689), (6, 3363126), (9, 2242084), (12, 1681563), (13, 1552212), (18, 1121042), (26, 776106), (36, 560521), (39, 517404), (52, 388053), (78, 258702), (117, 172468), (156, 129351), (234, 86234), (468, 43117)]