256504326

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{142979}}^1$

素因数の和:143020

約数の個数: 32

約数和(自身を含む): 576495360

約数和(自身を除く): 319991034

約数列:

[1, 2, 3, 6, 13, 23, 26, 39, 46, 69, 78, 138, 299, 598, 897, 1794, 142979, 285958, 428937, 857874, 1858727, 3288517, 3717454, 5576181, 6577034, 9865551, 11152362, 19731102, 42750721, 85501442, 128252163, 256504326]

約数ペア:

[(1, 256504326), (2, 128252163), (3, 85501442), (6, 42750721), (13, 19731102), (23, 11152362), (26, 9865551), (39, 6577034), (46, 5576181), (69, 3717454), (78, 3288517), (138, 1858727), (299, 857874), (598, 428937), (897, 285958), (1794, 142979)]