290991008

素因数分解:

$2^5\times 7^2\times {\mathrm{11}}^1\times {\mathrm{16871}}^1$

素因数の和:16906

約数の個数: 72

約数和(自身を含む): 727048224

約数和(自身を除く): 436057216

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 49, 56, 77, 88, 98, 112, 154, 176, 196, 224, 308, 352, 392, 539, 616, 784, 1078, 1232, 1568, 2156, 2464, 4312, 8624, 16871, 17248, 33742, 67484, 118097, 134968, 185581, 236194, 269936, 371162, 472388, 539872, 742324, 826679, 944776, 1299067, 1484648, 1653358, 1889552, 2598134, 2969296, 3306716, 3779104, 5196268, 5938592, 6613432, 9093469, 10392536, 13226864, 18186938, 20785072, 26453728, 36373876, 41570144, 72747752, 145495504, 290991008]

約数ペア:

[(1, 290991008), (2, 145495504), (4, 72747752), (7, 41570144), (8, 36373876), (11, 26453728), (14, 20785072), (16, 18186938), (22, 13226864), (28, 10392536), (32, 9093469), (44, 6613432), (49, 5938592), (56, 5196268), (77, 3779104), (88, 3306716), (98, 2969296), (112, 2598134), (154, 1889552), (176, 1653358), (196, 1484648), (224, 1299067), (308, 944776), (352, 826679), (392, 742324), (539, 539872), (616, 472388), (784, 371162), (1078, 269936), (1232, 236194), (1568, 185581), (2156, 134968), (2464, 118097), (4312, 67484), (8624, 33742), (16871, 17248)]