257694786

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{223}}^1\times {\mathrm{1493}}^1$

素因数の和:1767

約数の個数: 48

約数和(自身を含む): 574269696

約数和(自身を除く): 316574910

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 223, 258, 387, 446, 669, 774, 1338, 1493, 2007, 2986, 4014, 4479, 8958, 9589, 13437, 19178, 26874, 28767, 57534, 64199, 86301, 128398, 172602, 192597, 332939, 385194, 577791, 665878, 998817, 1155582, 1997634, 2996451, 5992902, 14316377, 28632754, 42949131, 85898262, 128847393, 257694786]

約数ペア:

[(1, 257694786), (2, 128847393), (3, 85898262), (6, 42949131), (9, 28632754), (18, 14316377), (43, 5992902), (86, 2996451), (129, 1997634), (223, 1155582), (258, 998817), (387, 665878), (446, 577791), (669, 385194), (774, 332939), (1338, 192597), (1493, 172602), (2007, 128398), (2986, 86301), (4014, 64199), (4479, 57534), (8958, 28767), (9589, 26874), (13437, 19178)]