256366440

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1579}}^1$

素因数の和:1648

約数の個数: 192

約数和(自身を含む): 931694400

約数和(自身を除く): 675327960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 41, 44, 45, 55, 60, 66, 72, 82, 88, 90, 99, 110, 120, 123, 132, 164, 165, 180, 198, 205, 220, 246, 264, 328, 330, 360, 369, 396, 410, 440, 451, 492, 495, 615, 660, 738, 792, 820, 902, 984, 990, 1230, 1320, 1353, 1476, 1579, 1640, 1804, 1845, 1980, 2255, 2460, 2706, 2952, 3158, 3608, 3690, 3960, 4059, 4510, 4737, 4920, 5412, 6316, 6765, 7380, 7895, 8118, 9020, 9474, 10824, 12632, 13530, 14211, 14760, 15790, 16236, 17369, 18040, 18948, 20295, 23685, 27060, 28422, 31580, 32472, 34738, 37896, 40590, 47370, 52107, 54120, 56844, 63160, 64739, 69476, 71055, 81180, 86845, 94740, 104214, 113688, 129478, 138952, 142110, 156321, 162360, 173690, 189480, 194217, 208428, 258956, 260535, 284220, 312642, 323695, 347380, 388434, 416856, 517912, 521070, 568440, 582651, 625284, 647390, 694760, 712129, 776868, 781605, 971085, 1042140, 1165302, 1250568, 1294780, 1424258, 1553736, 1563210, 1942170, 2084280, 2136387, 2330604, 2589560, 2848516, 2913255, 3126420, 3560645, 3884340, 4272774, 4661208, 5697032, 5826510, 6252840, 6409161, 7121290, 7768680, 8545548, 10681935, 11653020, 12818322, 14242580, 17091096, 21363870, 23306040, 25636644, 28485160, 32045805, 42727740, 51273288, 64091610, 85455480, 128183220, 256366440]

約数ペア:

[(1, 256366440), (2, 128183220), (3, 85455480), (4, 64091610), (5, 51273288), (6, 42727740), (8, 32045805), (9, 28485160), (10, 25636644), (11, 23306040), (12, 21363870), (15, 17091096), (18, 14242580), (20, 12818322), (22, 11653020), (24, 10681935), (30, 8545548), (33, 7768680), (36, 7121290), (40, 6409161), (41, 6252840), (44, 5826510), (45, 5697032), (55, 4661208), (60, 4272774), (66, 3884340), (72, 3560645), (82, 3126420), (88, 2913255), (90, 2848516), (99, 2589560), (110, 2330604), (120, 2136387), (123, 2084280), (132, 1942170), (164, 1563210), (165, 1553736), (180, 1424258), (198, 1294780), (205, 1250568), (220, 1165302), (246, 1042140), (264, 971085), (328, 781605), (330, 776868), (360, 712129), (369, 694760), (396, 647390), (410, 625284), (440, 582651), (451, 568440), (492, 521070), (495, 517912), (615, 416856), (660, 388434), (738, 347380), (792, 323695), (820, 312642), (902, 284220), (984, 260535), (990, 258956), (1230, 208428), (1320, 194217), (1353, 189480), (1476, 173690), (1579, 162360), (1640, 156321), (1804, 142110), (1845, 138952), (1980, 129478), (2255, 113688), (2460, 104214), (2706, 94740), (2952, 86845), (3158, 81180), (3608, 71055), (3690, 69476), (3960, 64739), (4059, 63160), (4510, 56844), (4737, 54120), (4920, 52107), (5412, 47370), (6316, 40590), (6765, 37896), (7380, 34738), (7895, 32472), (8118, 31580), (9020, 28422), (9474, 27060), (10824, 23685), (12632, 20295), (13530, 18948), (14211, 18040), (14760, 17369), (15790, 16236)]