257220480

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{641}}^1$

素因数の和:693

約数の個数: 256

約数和(自身を含む): 942969600

約数和(自身を除く): 685749120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 19, 20, 22, 24, 30, 32, 33, 38, 40, 44, 48, 55, 57, 60, 64, 66, 76, 80, 88, 95, 96, 110, 114, 120, 128, 132, 152, 160, 165, 176, 190, 192, 209, 220, 228, 240, 264, 285, 304, 320, 330, 352, 380, 384, 418, 440, 456, 480, 528, 570, 608, 627, 640, 641, 660, 704, 760, 836, 880, 912, 960, 1045, 1056, 1140, 1216, 1254, 1282, 1320, 1408, 1520, 1672, 1760, 1824, 1920, 1923, 2090, 2112, 2280, 2432, 2508, 2564, 2640, 3040, 3135, 3205, 3344, 3520, 3648, 3846, 4180, 4224, 4560, 5016, 5128, 5280, 6080, 6270, 6410, 6688, 7040, 7051, 7296, 7692, 8360, 9120, 9615, 10032, 10256, 10560, 12160, 12179, 12540, 12820, 13376, 14102, 15384, 16720, 18240, 19230, 20064, 20512, 21120, 21153, 24358, 25080, 25640, 26752, 28204, 30768, 33440, 35255, 36480, 36537, 38460, 40128, 41024, 42306, 48716, 50160, 51280, 56408, 60895, 61536, 66880, 70510, 73074, 76920, 80256, 82048, 84612, 97432, 100320, 102560, 105765, 112816, 121790, 123072, 133760, 133969, 141020, 146148, 153840, 169224, 182685, 194864, 200640, 205120, 211530, 225632, 243580, 246144, 267938, 282040, 292296, 307680, 338448, 365370, 389728, 401280, 401907, 410240, 423060, 451264, 487160, 535876, 564080, 584592, 615360, 669845, 676896, 730740, 779456, 803814, 846120, 902528, 974320, 1071752, 1128160, 1169184, 1230720, 1339690, 1353792, 1461480, 1558912, 1607628, 1692240, 1948640, 2009535, 2143504, 2256320, 2338368, 2679380, 2707584, 2922960, 3215256, 3384480, 3897280, 4019070, 4287008, 4512640, 4676736, 5358760, 5845920, 6430512, 6768960, 7794560, 8038140, 8574016, 10717520, 11691840, 12861024, 13537920, 16076280, 17148032, 21435040, 23383680, 25722048, 32152560, 42870080, 51444096, 64305120, 85740160, 128610240, 257220480]

約数ペア:

[(1, 257220480), (2, 128610240), (3, 85740160), (4, 64305120), (5, 51444096), (6, 42870080), (8, 32152560), (10, 25722048), (11, 23383680), (12, 21435040), (15, 17148032), (16, 16076280), (19, 13537920), (20, 12861024), (22, 11691840), (24, 10717520), (30, 8574016), (32, 8038140), (33, 7794560), (38, 6768960), (40, 6430512), (44, 5845920), (48, 5358760), (55, 4676736), (57, 4512640), (60, 4287008), (64, 4019070), (66, 3897280), (76, 3384480), (80, 3215256), (88, 2922960), (95, 2707584), (96, 2679380), (110, 2338368), (114, 2256320), (120, 2143504), (128, 2009535), (132, 1948640), (152, 1692240), (160, 1607628), (165, 1558912), (176, 1461480), (190, 1353792), (192, 1339690), (209, 1230720), (220, 1169184), (228, 1128160), (240, 1071752), (264, 974320), (285, 902528), (304, 846120), (320, 803814), (330, 779456), (352, 730740), (380, 676896), (384, 669845), (418, 615360), (440, 584592), (456, 564080), (480, 535876), (528, 487160), (570, 451264), (608, 423060), (627, 410240), (640, 401907), (641, 401280), (660, 389728), (704, 365370), (760, 338448), (836, 307680), (880, 292296), (912, 282040), (960, 267938), (1045, 246144), (1056, 243580), (1140, 225632), (1216, 211530), (1254, 205120), (1282, 200640), (1320, 194864), (1408, 182685), (1520, 169224), (1672, 153840), (1760, 146148), (1824, 141020), (1920, 133969), (1923, 133760), (2090, 123072), (2112, 121790), (2280, 112816), (2432, 105765), (2508, 102560), (2564, 100320), (2640, 97432), (3040, 84612), (3135, 82048), (3205, 80256), (3344, 76920), (3520, 73074), (3648, 70510), (3846, 66880), (4180, 61536), (4224, 60895), (4560, 56408), (5016, 51280), (5128, 50160), (5280, 48716), (6080, 42306), (6270, 41024), (6410, 40128), (6688, 38460), (7040, 36537), (7051, 36480), (7296, 35255), (7692, 33440), (8360, 30768), (9120, 28204), (9615, 26752), (10032, 25640), (10256, 25080), (10560, 24358), (12160, 21153), (12179, 21120), (12540, 20512), (12820, 20064), (13376, 19230), (14102, 18240), (15384, 16720)]