256808214

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{20707}}^1$

素因数の和:20781

約数の個数: 48

約数和(自身を含む): 610554672

約数和(自身を除く): 353746458

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 53, 78, 106, 117, 159, 234, 318, 477, 689, 954, 1378, 2067, 4134, 6201, 12402, 20707, 41414, 62121, 124242, 186363, 269191, 372726, 538382, 807573, 1097471, 1615146, 2194942, 2422719, 3292413, 4845438, 6584826, 9877239, 14267123, 19754478, 28534246, 42801369, 85602738, 128404107, 256808214]

約数ペア:

[(1, 256808214), (2, 128404107), (3, 85602738), (6, 42801369), (9, 28534246), (13, 19754478), (18, 14267123), (26, 9877239), (39, 6584826), (53, 4845438), (78, 3292413), (106, 2422719), (117, 2194942), (159, 1615146), (234, 1097471), (318, 807573), (477, 538382), (689, 372726), (954, 269191), (1378, 186363), (2067, 124242), (4134, 62121), (6201, 41414), (12402, 20707)]