291250518

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{5237}}^1$

素因数の和:5309

約数の個数: 64

約数和(自身を含む): 675827712

約数和(自身を除く): 384577194

約数列:

[1, 2, 3, 6, 13, 23, 26, 31, 39, 46, 62, 69, 78, 93, 138, 186, 299, 403, 598, 713, 806, 897, 1209, 1426, 1794, 2139, 2418, 4278, 5237, 9269, 10474, 15711, 18538, 27807, 31422, 55614, 68081, 120451, 136162, 162347, 204243, 240902, 324694, 361353, 408486, 487041, 722706, 974082, 1565863, 2110511, 3131726, 3733981, 4221022, 4697589, 6331533, 7467962, 9395178, 11201943, 12663066, 22403886, 48541753, 97083506, 145625259, 291250518]

約数ペア:

[(1, 291250518), (2, 145625259), (3, 97083506), (6, 48541753), (13, 22403886), (23, 12663066), (26, 11201943), (31, 9395178), (39, 7467962), (46, 6331533), (62, 4697589), (69, 4221022), (78, 3733981), (93, 3131726), (138, 2110511), (186, 1565863), (299, 974082), (403, 722706), (598, 487041), (713, 408486), (806, 361353), (897, 324694), (1209, 240902), (1426, 204243), (1794, 162347), (2139, 136162), (2418, 120451), (4278, 68081), (5237, 55614), (9269, 31422), (10474, 27807), (15711, 18538)]