256005456

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{211}}^1$

素因数の和:409

約数の個数: 160

約数和(自身を含む): 797472768

約数和(自身を除く): 541467312

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 23, 24, 28, 42, 46, 48, 56, 69, 84, 92, 112, 138, 157, 161, 168, 184, 211, 276, 314, 322, 336, 368, 422, 471, 483, 552, 628, 633, 644, 844, 942, 966, 1099, 1104, 1256, 1266, 1288, 1477, 1688, 1884, 1932, 2198, 2512, 2532, 2576, 2954, 3297, 3376, 3611, 3768, 3864, 4396, 4431, 4853, 5064, 5908, 6594, 7222, 7536, 7728, 8792, 8862, 9706, 10128, 10833, 11816, 13188, 14444, 14559, 17584, 17724, 19412, 21666, 23632, 25277, 26376, 28888, 29118, 33127, 33971, 35448, 38824, 43332, 50554, 52752, 57776, 58236, 66254, 67942, 70896, 75831, 77648, 86664, 99381, 101108, 101913, 116472, 132508, 135884, 151662, 173328, 198762, 202216, 203826, 231889, 232944, 265016, 271768, 303324, 397524, 404432, 407652, 463778, 530032, 543536, 606648, 695667, 761921, 795048, 815304, 927556, 1213296, 1391334, 1523842, 1590096, 1630608, 1855112, 2285763, 2782668, 3047684, 3710224, 4571526, 5333447, 5565336, 6095368, 9143052, 10666894, 11130672, 12190736, 16000341, 18286104, 21333788, 32000682, 36572208, 42667576, 64001364, 85335152, 128002728, 256005456]

約数ペア:

[(1, 256005456), (2, 128002728), (3, 85335152), (4, 64001364), (6, 42667576), (7, 36572208), (8, 32000682), (12, 21333788), (14, 18286104), (16, 16000341), (21, 12190736), (23, 11130672), (24, 10666894), (28, 9143052), (42, 6095368), (46, 5565336), (48, 5333447), (56, 4571526), (69, 3710224), (84, 3047684), (92, 2782668), (112, 2285763), (138, 1855112), (157, 1630608), (161, 1590096), (168, 1523842), (184, 1391334), (211, 1213296), (276, 927556), (314, 815304), (322, 795048), (336, 761921), (368, 695667), (422, 606648), (471, 543536), (483, 530032), (552, 463778), (628, 407652), (633, 404432), (644, 397524), (844, 303324), (942, 271768), (966, 265016), (1099, 232944), (1104, 231889), (1256, 203826), (1266, 202216), (1288, 198762), (1477, 173328), (1688, 151662), (1884, 135884), (1932, 132508), (2198, 116472), (2512, 101913), (2532, 101108), (2576, 99381), (2954, 86664), (3297, 77648), (3376, 75831), (3611, 70896), (3768, 67942), (3864, 66254), (4396, 58236), (4431, 57776), (4853, 52752), (5064, 50554), (5908, 43332), (6594, 38824), (7222, 35448), (7536, 33971), (7728, 33127), (8792, 29118), (8862, 28888), (9706, 26376), (10128, 25277), (10833, 23632), (11816, 21666), (13188, 19412), (14444, 17724), (14559, 17584)]