257273984

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{163}}^1$

素因数の和:266

約数の個数: 128

約数和(自身を含む): 602208000

約数和(自身を除く): 344934016

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 32, 38, 44, 59, 64, 76, 88, 118, 128, 152, 163, 176, 209, 236, 304, 326, 352, 418, 472, 608, 649, 652, 704, 836, 944, 1121, 1216, 1298, 1304, 1408, 1672, 1793, 1888, 2242, 2432, 2596, 2608, 3097, 3344, 3586, 3776, 4484, 5192, 5216, 6194, 6688, 7172, 7552, 8968, 9617, 10384, 10432, 12331, 12388, 13376, 14344, 17936, 19234, 20768, 20864, 24662, 24776, 26752, 28688, 34067, 35872, 38468, 41536, 49324, 49552, 57376, 68134, 71744, 76936, 83072, 98648, 99104, 105787, 114752, 136268, 143488, 153872, 182723, 197296, 198208, 211574, 229504, 272536, 307744, 365446, 394592, 396416, 423148, 545072, 615488, 730892, 789184, 846296, 1090144, 1230976, 1461784, 1578368, 1692592, 2009953, 2180288, 2923568, 3385184, 4019906, 4360576, 5847136, 6770368, 8039812, 11694272, 13540736, 16079624, 23388544, 32159248, 64318496, 128636992, 257273984]

約数ペア:

[(1, 257273984), (2, 128636992), (4, 64318496), (8, 32159248), (11, 23388544), (16, 16079624), (19, 13540736), (22, 11694272), (32, 8039812), (38, 6770368), (44, 5847136), (59, 4360576), (64, 4019906), (76, 3385184), (88, 2923568), (118, 2180288), (128, 2009953), (152, 1692592), (163, 1578368), (176, 1461784), (209, 1230976), (236, 1090144), (304, 846296), (326, 789184), (352, 730892), (418, 615488), (472, 545072), (608, 423148), (649, 396416), (652, 394592), (704, 365446), (836, 307744), (944, 272536), (1121, 229504), (1216, 211574), (1298, 198208), (1304, 197296), (1408, 182723), (1672, 153872), (1793, 143488), (1888, 136268), (2242, 114752), (2432, 105787), (2596, 99104), (2608, 98648), (3097, 83072), (3344, 76936), (3586, 71744), (3776, 68134), (4484, 57376), (5192, 49552), (5216, 49324), (6194, 41536), (6688, 38468), (7172, 35872), (7552, 34067), (8968, 28688), (9617, 26752), (10384, 24776), (10432, 24662), (12331, 20864), (12388, 20768), (13376, 19234), (14344, 17936)]