257332320

素因数分解:

$2^5\times 3^2\times 5^1\times 7^3\times {\mathrm{521}}^1$

素因数の和:563

約数の個数: 288

約数和(自身を含む): 1026043200

約数和(自身を除く): 768710880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 96, 98, 105, 112, 120, 126, 140, 144, 147, 160, 168, 180, 196, 210, 224, 240, 245, 252, 280, 288, 294, 315, 336, 343, 360, 392, 420, 441, 480, 490, 504, 521, 560, 588, 630, 672, 686, 720, 735, 784, 840, 882, 980, 1008, 1029, 1042, 1120, 1176, 1260, 1372, 1440, 1470, 1563, 1568, 1680, 1715, 1764, 1960, 2016, 2058, 2084, 2205, 2352, 2520, 2605, 2744, 2940, 3087, 3126, 3360, 3430, 3528, 3647, 3920, 4116, 4168, 4410, 4689, 4704, 5040, 5145, 5210, 5488, 5880, 6174, 6252, 6860, 7056, 7294, 7815, 7840, 8232, 8336, 8820, 9378, 10080, 10290, 10420, 10941, 10976, 11760, 12348, 12504, 13720, 14112, 14588, 15435, 15630, 16464, 16672, 17640, 18235, 18756, 20580, 20840, 21882, 23445, 23520, 24696, 25008, 25529, 27440, 29176, 30870, 31260, 32823, 32928, 35280, 36470, 37512, 41160, 41680, 43764, 46890, 49392, 50016, 51058, 54705, 54880, 58352, 61740, 62520, 65646, 70560, 72940, 75024, 76587, 82320, 83360, 87528, 93780, 98784, 102116, 109410, 116704, 123480, 125040, 127645, 131292, 145880, 150048, 153174, 164115, 164640, 175056, 178703, 187560, 204232, 218820, 229761, 246960, 250080, 255290, 262584, 291760, 306348, 328230, 350112, 357406, 375120, 382935, 408464, 437640, 459522, 493920, 510580, 525168, 536109, 583520, 612696, 656460, 714812, 750240, 765870, 816928, 875280, 893515, 919044, 1021160, 1050336, 1072218, 1148805, 1225392, 1312920, 1429624, 1531740, 1608327, 1750560, 1787030, 1838088, 2042320, 2144436, 2297610, 2450784, 2625840, 2680545, 2859248, 3063480, 3216654, 3574060, 3676176, 4084640, 4288872, 4595220, 5251680, 5361090, 5718496, 6126960, 6433308, 7148120, 7352352, 8041635, 8577744, 9190440, 10722180, 12253920, 12866616, 14296240, 16083270, 17155488, 18380880, 21444360, 25733232, 28592480, 32166540, 36761760, 42888720, 51466464, 64333080, 85777440, 128666160, 257332320]

約数ペア:

[(1, 257332320), (2, 128666160), (3, 85777440), (4, 64333080), (5, 51466464), (6, 42888720), (7, 36761760), (8, 32166540), (9, 28592480), (10, 25733232), (12, 21444360), (14, 18380880), (15, 17155488), (16, 16083270), (18, 14296240), (20, 12866616), (21, 12253920), (24, 10722180), (28, 9190440), (30, 8577744), (32, 8041635), (35, 7352352), (36, 7148120), (40, 6433308), (42, 6126960), (45, 5718496), (48, 5361090), (49, 5251680), (56, 4595220), (60, 4288872), (63, 4084640), (70, 3676176), (72, 3574060), (80, 3216654), (84, 3063480), (90, 2859248), (96, 2680545), (98, 2625840), (105, 2450784), (112, 2297610), (120, 2144436), (126, 2042320), (140, 1838088), (144, 1787030), (147, 1750560), (160, 1608327), (168, 1531740), (180, 1429624), (196, 1312920), (210, 1225392), (224, 1148805), (240, 1072218), (245, 1050336), (252, 1021160), (280, 919044), (288, 893515), (294, 875280), (315, 816928), (336, 765870), (343, 750240), (360, 714812), (392, 656460), (420, 612696), (441, 583520), (480, 536109), (490, 525168), (504, 510580), (521, 493920), (560, 459522), (588, 437640), (630, 408464), (672, 382935), (686, 375120), (720, 357406), (735, 350112), (784, 328230), (840, 306348), (882, 291760), (980, 262584), (1008, 255290), (1029, 250080), (1042, 246960), (1120, 229761), (1176, 218820), (1260, 204232), (1372, 187560), (1440, 178703), (1470, 175056), (1563, 164640), (1568, 164115), (1680, 153174), (1715, 150048), (1764, 145880), (1960, 131292), (2016, 127645), (2058, 125040), (2084, 123480), (2205, 116704), (2352, 109410), (2520, 102116), (2605, 98784), (2744, 93780), (2940, 87528), (3087, 83360), (3126, 82320), (3360, 76587), (3430, 75024), (3528, 72940), (3647, 70560), (3920, 65646), (4116, 62520), (4168, 61740), (4410, 58352), (4689, 54880), (4704, 54705), (5040, 51058), (5145, 50016), (5210, 49392), (5488, 46890), (5880, 43764), (6174, 41680), (6252, 41160), (6860, 37512), (7056, 36470), (7294, 35280), (7815, 32928), (7840, 32823), (8232, 31260), (8336, 30870), (8820, 29176), (9378, 27440), (10080, 25529), (10290, 25008), (10420, 24696), (10941, 23520), (10976, 23445), (11760, 21882), (12348, 20840), (12504, 20580), (13720, 18756), (14112, 18235), (14588, 17640), (15435, 16672), (15630, 16464)]