257913972

素因数分解:

$2^2\times 3^2\times {\mathrm{269}}^1\times {\mathrm{26633}}^1$

素因数の和:26912

約数の個数: 36

約数和(自身を含む): 654397380

約数和(自身を除く): 396483408

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 269, 538, 807, 1076, 1614, 2421, 3228, 4842, 9684, 26633, 53266, 79899, 106532, 159798, 239697, 319596, 479394, 958788, 7164277, 14328554, 21492831, 28657108, 42985662, 64478493, 85971324, 128956986, 257913972]

約数ペア:

[(1, 257913972), (2, 128956986), (3, 85971324), (4, 64478493), (6, 42985662), (9, 28657108), (12, 21492831), (18, 14328554), (36, 7164277), (269, 958788), (538, 479394), (807, 319596), (1076, 239697), (1614, 159798), (2421, 106532), (3228, 79899), (4842, 53266), (9684, 26633)]