678989871

素因数分解:

$3^6\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1$

素因数の和:240

約数の個数: 112

約数和(自身を含む): 1259136000

約数和(自身を除く): 580146129

約数列:

[1, 3, 7, 9, 19, 21, 27, 47, 57, 63, 81, 133, 141, 149, 171, 189, 243, 329, 399, 423, 447, 513, 567, 729, 893, 987, 1043, 1197, 1269, 1341, 1539, 1701, 2679, 2831, 2961, 3129, 3591, 3807, 4023, 4617, 5103, 6251, 7003, 8037, 8493, 8883, 9387, 10773, 11421, 12069, 13851, 18753, 19817, 21009, 24111, 25479, 26649, 28161, 32319, 34263, 36207, 49021, 56259, 59451, 63027, 72333, 76437, 79947, 84483, 96957, 108621, 133057, 147063, 168777, 178353, 189081, 216999, 229311, 239841, 253449, 399171, 441189, 506331, 535059, 567243, 650997, 687933, 760347, 931399, 1197513, 1323567, 1518993, 1605177, 1701729, 2063799, 2794197, 3592539, 3970701, 4556979, 4815531, 5105187, 8382591, 10777617, 11912103, 14446593, 25147773, 32332851, 35736309, 75443319, 96998553, 226329957, 678989871]

約数ペア:

[(1, 678989871), (3, 226329957), (7, 96998553), (9, 75443319), (19, 35736309), (21, 32332851), (27, 25147773), (47, 14446593), (57, 11912103), (63, 10777617), (81, 8382591), (133, 5105187), (141, 4815531), (149, 4556979), (171, 3970701), (189, 3592539), (243, 2794197), (329, 2063799), (399, 1701729), (423, 1605177), (447, 1518993), (513, 1323567), (567, 1197513), (729, 931399), (893, 760347), (987, 687933), (1043, 650997), (1197, 567243), (1269, 535059), (1341, 506331), (1539, 441189), (1701, 399171), (2679, 253449), (2831, 239841), (2961, 229311), (3129, 216999), (3591, 189081), (3807, 178353), (4023, 168777), (4617, 147063), (5103, 133057), (6251, 108621), (7003, 96957), (8037, 84483), (8493, 79947), (8883, 76437), (9387, 72333), (10773, 63027), (11421, 59451), (12069, 56259), (13851, 49021), (18753, 36207), (19817, 34263), (21009, 32319), (24111, 28161), (25479, 26649)]