28991178

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{239}}^1\times {\mathrm{293}}^1$

素因数の和:563

約数の個数: 48

約数和(自身を含む): 66044160

約数和(自身を除く): 37052982

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 138, 207, 239, 293, 414, 478, 586, 717, 879, 1434, 1758, 2151, 2637, 4302, 5274, 5497, 6739, 10994, 13478, 16491, 20217, 32982, 40434, 49473, 60651, 70027, 98946, 121302, 140054, 210081, 420162, 630243, 1260486, 1610621, 3221242, 4831863, 9663726, 14495589, 28991178]

約数ペア:

[(1, 28991178), (2, 14495589), (3, 9663726), (6, 4831863), (9, 3221242), (18, 1610621), (23, 1260486), (46, 630243), (69, 420162), (138, 210081), (207, 140054), (239, 121302), (293, 98946), (414, 70027), (478, 60651), (586, 49473), (717, 40434), (879, 32982), (1434, 20217), (1758, 16491), (2151, 13478), (2637, 10994), (4302, 6739), (5274, 5497)]