686877952

素因数分解:

$2^8\times {\mathrm{97}}^1\times {\mathrm{139}}^1\times {\mathrm{199}}^1$

素因数の和:451

約数の個数: 72

約数和(自身を含む): 1402184000

約数和(自身を除く): 715306048

約数列:

[1, 2, 4, 8, 16, 32, 64, 97, 128, 139, 194, 199, 256, 278, 388, 398, 556, 776, 796, 1112, 1552, 1592, 2224, 3104, 3184, 4448, 6208, 6368, 8896, 12416, 12736, 13483, 17792, 19303, 24832, 25472, 26966, 27661, 35584, 38606, 50944, 53932, 55322, 77212, 107864, 110644, 154424, 215728, 221288, 308848, 431456, 442576, 617696, 862912, 885152, 1235392, 1725824, 1770304, 2470784, 2683117, 3451648, 3540608, 4941568, 5366234, 7081216, 10732468, 21464936, 42929872, 85859744, 171719488, 343438976, 686877952]

約数ペア:

[(1, 686877952), (2, 343438976), (4, 171719488), (8, 85859744), (16, 42929872), (32, 21464936), (64, 10732468), (97, 7081216), (128, 5366234), (139, 4941568), (194, 3540608), (199, 3451648), (256, 2683117), (278, 2470784), (388, 1770304), (398, 1725824), (556, 1235392), (776, 885152), (796, 862912), (1112, 617696), (1552, 442576), (1592, 431456), (2224, 308848), (3104, 221288), (3184, 215728), (4448, 154424), (6208, 110644), (6368, 107864), (8896, 77212), (12416, 55322), (12736, 53932), (13483, 50944), (17792, 38606), (19303, 35584), (24832, 27661), (25472, 26966)]