261295440

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{1307}}^1$

素因数の和:1354

約数の個数: 240

約数和(自身を含む): 998453952

約数和(自身を除く): 737158512

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 17, 20, 21, 24, 28, 30, 34, 35, 40, 42, 48, 49, 51, 56, 60, 68, 70, 80, 84, 85, 98, 102, 105, 112, 119, 120, 136, 140, 147, 168, 170, 196, 204, 210, 238, 240, 245, 255, 272, 280, 294, 336, 340, 357, 392, 408, 420, 476, 490, 510, 560, 588, 595, 680, 714, 735, 784, 816, 833, 840, 952, 980, 1020, 1176, 1190, 1307, 1360, 1428, 1470, 1666, 1680, 1785, 1904, 1960, 2040, 2352, 2380, 2499, 2614, 2856, 2940, 3332, 3570, 3920, 3921, 4080, 4165, 4760, 4998, 5228, 5712, 5880, 6535, 6664, 7140, 7842, 8330, 9149, 9520, 9996, 10456, 11760, 12495, 13070, 13328, 14280, 15684, 16660, 18298, 19605, 19992, 20912, 22219, 24990, 26140, 27447, 28560, 31368, 33320, 36596, 39210, 39984, 44438, 45745, 49980, 52280, 54894, 62736, 64043, 66640, 66657, 73192, 78420, 88876, 91490, 99960, 104560, 109788, 111095, 128086, 133314, 137235, 146384, 155533, 156840, 177752, 182980, 192129, 199920, 219576, 222190, 256172, 266628, 274470, 311066, 313680, 320215, 333285, 355504, 365960, 384258, 439152, 444380, 466599, 512344, 533256, 548940, 622132, 640430, 666570, 731920, 768516, 777665, 888760, 933198, 960645, 1024688, 1066512, 1088731, 1097880, 1244264, 1280860, 1333140, 1537032, 1555330, 1777520, 1866396, 1921290, 2177462, 2195760, 2332995, 2488528, 2561720, 2666280, 3074064, 3110660, 3266193, 3732792, 3842580, 4354924, 4665990, 5123440, 5332560, 5443655, 6221320, 6532386, 7465584, 7685160, 8709848, 9331980, 10887310, 12442640, 13064772, 15370320, 16330965, 17419696, 18663960, 21774620, 26129544, 32661930, 37327920, 43549240, 52259088, 65323860, 87098480, 130647720, 261295440]

約数ペア:

[(1, 261295440), (2, 130647720), (3, 87098480), (4, 65323860), (5, 52259088), (6, 43549240), (7, 37327920), (8, 32661930), (10, 26129544), (12, 21774620), (14, 18663960), (15, 17419696), (16, 16330965), (17, 15370320), (20, 13064772), (21, 12442640), (24, 10887310), (28, 9331980), (30, 8709848), (34, 7685160), (35, 7465584), (40, 6532386), (42, 6221320), (48, 5443655), (49, 5332560), (51, 5123440), (56, 4665990), (60, 4354924), (68, 3842580), (70, 3732792), (80, 3266193), (84, 3110660), (85, 3074064), (98, 2666280), (102, 2561720), (105, 2488528), (112, 2332995), (119, 2195760), (120, 2177462), (136, 1921290), (140, 1866396), (147, 1777520), (168, 1555330), (170, 1537032), (196, 1333140), (204, 1280860), (210, 1244264), (238, 1097880), (240, 1088731), (245, 1066512), (255, 1024688), (272, 960645), (280, 933198), (294, 888760), (336, 777665), (340, 768516), (357, 731920), (392, 666570), (408, 640430), (420, 622132), (476, 548940), (490, 533256), (510, 512344), (560, 466599), (588, 444380), (595, 439152), (680, 384258), (714, 365960), (735, 355504), (784, 333285), (816, 320215), (833, 313680), (840, 311066), (952, 274470), (980, 266628), (1020, 256172), (1176, 222190), (1190, 219576), (1307, 199920), (1360, 192129), (1428, 182980), (1470, 177752), (1666, 156840), (1680, 155533), (1785, 146384), (1904, 137235), (1960, 133314), (2040, 128086), (2352, 111095), (2380, 109788), (2499, 104560), (2614, 99960), (2856, 91490), (2940, 88876), (3332, 78420), (3570, 73192), (3920, 66657), (3921, 66640), (4080, 64043), (4165, 62736), (4760, 54894), (4998, 52280), (5228, 49980), (5712, 45745), (5880, 44438), (6535, 39984), (6664, 39210), (7140, 36596), (7842, 33320), (8330, 31368), (9149, 28560), (9520, 27447), (9996, 26140), (10456, 24990), (11760, 22219), (12495, 20912), (13070, 19992), (13328, 19605), (14280, 18298), (15684, 16660)]