213855856

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{271}}^1$

素因数の和:390

約数の個数: 80

約数和(自身を含む): 451145728

約数和(自身を除く): 237289872

約数列:

[1, 2, 4, 8, 16, 31, 37, 43, 62, 74, 86, 124, 148, 172, 248, 271, 296, 344, 496, 542, 592, 688, 1084, 1147, 1333, 1591, 2168, 2294, 2666, 3182, 4336, 4588, 5332, 6364, 8401, 9176, 10027, 10664, 11653, 12728, 16802, 18352, 20054, 21328, 23306, 25456, 33604, 40108, 46612, 49321, 67208, 80216, 93224, 98642, 134416, 160432, 186448, 197284, 310837, 361243, 394568, 431161, 621674, 722486, 789136, 862322, 1243348, 1444972, 1724644, 2486696, 2889944, 3449288, 4973392, 5779888, 6898576, 13365991, 26731982, 53463964, 106927928, 213855856]

約数ペア:

[(1, 213855856), (2, 106927928), (4, 53463964), (8, 26731982), (16, 13365991), (31, 6898576), (37, 5779888), (43, 4973392), (62, 3449288), (74, 2889944), (86, 2486696), (124, 1724644), (148, 1444972), (172, 1243348), (248, 862322), (271, 789136), (296, 722486), (344, 621674), (496, 431161), (542, 394568), (592, 361243), (688, 310837), (1084, 197284), (1147, 186448), (1333, 160432), (1591, 134416), (2168, 98642), (2294, 93224), (2666, 80216), (3182, 67208), (4336, 49321), (4588, 46612), (5332, 40108), (6364, 33604), (8401, 25456), (9176, 23306), (10027, 21328), (10664, 20054), (11653, 18352), (12728, 16802)]