256468212

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{647}}^1$

素因数の和:699

約数の個数: 216

約数和(自身を含む): 878387328

約数和(自身を除く): 621919116

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 13, 14, 18, 21, 22, 26, 28, 33, 36, 39, 42, 44, 52, 63, 66, 77, 78, 84, 91, 99, 117, 121, 126, 132, 143, 154, 156, 182, 198, 231, 234, 242, 252, 273, 286, 308, 363, 364, 396, 429, 462, 468, 484, 546, 572, 647, 693, 726, 819, 847, 858, 924, 1001, 1089, 1092, 1287, 1294, 1386, 1452, 1573, 1638, 1694, 1716, 1941, 2002, 2178, 2541, 2574, 2588, 2772, 3003, 3146, 3276, 3388, 3882, 4004, 4356, 4529, 4719, 5082, 5148, 5823, 6006, 6292, 7117, 7623, 7764, 8411, 9009, 9058, 9438, 10164, 11011, 11646, 12012, 13587, 14157, 14234, 15246, 16822, 18018, 18116, 18876, 21351, 22022, 23292, 25233, 27174, 28314, 28468, 30492, 33033, 33644, 36036, 40761, 42702, 44044, 49819, 50466, 54348, 56628, 58877, 64053, 66066, 75699, 78287, 81522, 85404, 92521, 99099, 99638, 100932, 117754, 128106, 132132, 149457, 151398, 156574, 163044, 176631, 185042, 198198, 199276, 234861, 235508, 256212, 277563, 298914, 302796, 313148, 353262, 370084, 396396, 448371, 469722, 529893, 548009, 555126, 597828, 647647, 704583, 706524, 832689, 896742, 939444, 1017731, 1059786, 1096018, 1110252, 1295294, 1409166, 1644027, 1665378, 1793484, 1942941, 2035462, 2119572, 2192036, 2590588, 2818332, 3053193, 3288054, 3330756, 3885882, 4070924, 4932081, 5828823, 6106386, 6576108, 7124117, 7771764, 9159579, 9864162, 11657646, 12212772, 14248234, 18319158, 19728324, 21372351, 23315292, 28496468, 36638316, 42744702, 64117053, 85489404, 128234106, 256468212]

約数ペア:

[(1, 256468212), (2, 128234106), (3, 85489404), (4, 64117053), (6, 42744702), (7, 36638316), (9, 28496468), (11, 23315292), (12, 21372351), (13, 19728324), (14, 18319158), (18, 14248234), (21, 12212772), (22, 11657646), (26, 9864162), (28, 9159579), (33, 7771764), (36, 7124117), (39, 6576108), (42, 6106386), (44, 5828823), (52, 4932081), (63, 4070924), (66, 3885882), (77, 3330756), (78, 3288054), (84, 3053193), (91, 2818332), (99, 2590588), (117, 2192036), (121, 2119572), (126, 2035462), (132, 1942941), (143, 1793484), (154, 1665378), (156, 1644027), (182, 1409166), (198, 1295294), (231, 1110252), (234, 1096018), (242, 1059786), (252, 1017731), (273, 939444), (286, 896742), (308, 832689), (363, 706524), (364, 704583), (396, 647647), (429, 597828), (462, 555126), (468, 548009), (484, 529893), (546, 469722), (572, 448371), (647, 396396), (693, 370084), (726, 353262), (819, 313148), (847, 302796), (858, 298914), (924, 277563), (1001, 256212), (1089, 235508), (1092, 234861), (1287, 199276), (1294, 198198), (1386, 185042), (1452, 176631), (1573, 163044), (1638, 156574), (1694, 151398), (1716, 149457), (1941, 132132), (2002, 128106), (2178, 117754), (2541, 100932), (2574, 99638), (2588, 99099), (2772, 92521), (3003, 85404), (3146, 81522), (3276, 78287), (3388, 75699), (3882, 66066), (4004, 64053), (4356, 58877), (4529, 56628), (4719, 54348), (5082, 50466), (5148, 49819), (5823, 44044), (6006, 42702), (6292, 40761), (7117, 36036), (7623, 33644), (7764, 33033), (8411, 30492), (9009, 28468), (9058, 28314), (9438, 27174), (10164, 25233), (11011, 23292), (11646, 22022), (12012, 21351), (13587, 18876), (14157, 18116), (14234, 18018), (15246, 16822)]