257239248

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{263}}^1$

素因数の和:393

約数の個数: 160

約数和(自身を含む): 791949312

約数和(自身を除く): 534710064

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 41, 42, 48, 56, 71, 82, 84, 112, 123, 142, 164, 168, 213, 246, 263, 284, 287, 328, 336, 426, 492, 497, 526, 568, 574, 656, 789, 852, 861, 984, 994, 1052, 1136, 1148, 1491, 1578, 1704, 1722, 1841, 1968, 1988, 2104, 2296, 2911, 2982, 3156, 3408, 3444, 3682, 3976, 4208, 4592, 5523, 5822, 5964, 6312, 6888, 7364, 7952, 8733, 10783, 11046, 11644, 11928, 12624, 13776, 14728, 17466, 18673, 20377, 21566, 22092, 23288, 23856, 29456, 32349, 34932, 37346, 40754, 43132, 44184, 46576, 56019, 61131, 64698, 69864, 74692, 75481, 81508, 86264, 88368, 112038, 122262, 129396, 130711, 139728, 149384, 150962, 163016, 172528, 224076, 226443, 244524, 258792, 261422, 298768, 301924, 326032, 392133, 448152, 452886, 489048, 517584, 522844, 603848, 765593, 784266, 896304, 905772, 978096, 1045688, 1207696, 1531186, 1568532, 1811544, 2091376, 2296779, 3062372, 3137064, 3623088, 4593558, 5359151, 6124744, 6274128, 9187116, 10718302, 12249488, 16077453, 18374232, 21436604, 32154906, 36748464, 42873208, 64309812, 85746416, 128619624, 257239248]

約数ペア:

[(1, 257239248), (2, 128619624), (3, 85746416), (4, 64309812), (6, 42873208), (7, 36748464), (8, 32154906), (12, 21436604), (14, 18374232), (16, 16077453), (21, 12249488), (24, 10718302), (28, 9187116), (41, 6274128), (42, 6124744), (48, 5359151), (56, 4593558), (71, 3623088), (82, 3137064), (84, 3062372), (112, 2296779), (123, 2091376), (142, 1811544), (164, 1568532), (168, 1531186), (213, 1207696), (246, 1045688), (263, 978096), (284, 905772), (287, 896304), (328, 784266), (336, 765593), (426, 603848), (492, 522844), (497, 517584), (526, 489048), (568, 452886), (574, 448152), (656, 392133), (789, 326032), (852, 301924), (861, 298768), (984, 261422), (994, 258792), (1052, 244524), (1136, 226443), (1148, 224076), (1491, 172528), (1578, 163016), (1704, 150962), (1722, 149384), (1841, 139728), (1968, 130711), (1988, 129396), (2104, 122262), (2296, 112038), (2911, 88368), (2982, 86264), (3156, 81508), (3408, 75481), (3444, 74692), (3682, 69864), (3976, 64698), (4208, 61131), (4592, 56019), (5523, 46576), (5822, 44184), (5964, 43132), (6312, 40754), (6888, 37346), (7364, 34932), (7952, 32349), (8733, 29456), (10783, 23856), (11046, 23288), (11644, 22092), (11928, 21566), (12624, 20377), (13776, 18673), (14728, 17466)]