256611960

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:219

約数の個数: 288

約数和(自身を含む): 944863920

約数和(自身を除く): 688251960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 43, 44, 45, 55, 60, 66, 72, 86, 88, 90, 99, 110, 120, 121, 129, 132, 137, 165, 172, 180, 198, 215, 220, 242, 258, 264, 274, 330, 344, 360, 363, 387, 396, 411, 430, 440, 473, 484, 495, 516, 548, 605, 645, 660, 685, 726, 774, 792, 822, 860, 946, 968, 990, 1032, 1089, 1096, 1210, 1233, 1290, 1320, 1370, 1419, 1452, 1507, 1548, 1644, 1720, 1815, 1892, 1935, 1980, 2055, 2178, 2365, 2420, 2466, 2580, 2740, 2838, 2904, 3014, 3096, 3288, 3630, 3784, 3870, 3960, 4110, 4257, 4356, 4521, 4730, 4840, 4932, 5160, 5203, 5445, 5480, 5676, 5891, 6028, 6165, 7095, 7260, 7535, 7740, 8220, 8514, 8712, 9042, 9460, 9864, 10406, 10890, 11352, 11782, 12056, 12330, 13563, 14190, 14520, 15070, 15480, 15609, 16440, 16577, 17028, 17673, 18084, 18920, 20812, 21285, 21780, 22605, 23564, 24660, 26015, 27126, 28380, 29455, 30140, 31218, 33154, 34056, 35346, 36168, 41624, 42570, 43560, 45210, 46827, 47128, 49320, 49731, 52030, 53019, 54252, 56760, 58910, 60280, 62436, 64801, 66308, 67815, 70692, 78045, 82885, 85140, 88365, 90420, 93654, 99462, 104060, 106038, 108504, 117820, 124872, 129602, 132616, 135630, 141384, 149193, 156090, 165770, 170280, 176730, 180840, 187308, 194403, 198924, 208120, 212076, 234135, 235640, 248655, 259204, 265095, 271260, 298386, 312180, 324005, 331540, 353460, 374616, 388806, 397848, 424152, 468270, 497310, 518408, 530190, 542520, 583209, 596772, 624360, 648010, 663080, 706920, 712811, 745965, 777612, 936540, 972015, 994620, 1060380, 1166418, 1193544, 1296020, 1425622, 1491930, 1555224, 1873080, 1944030, 1989240, 2120760, 2138433, 2332836, 2592040, 2851244, 2916045, 2983860, 3564055, 3888060, 4276866, 4665672, 5702488, 5832090, 5967720, 6415299, 7128110, 7776120, 8553732, 10692165, 11664180, 12830598, 14256220, 17107464, 21384330, 23328360, 25661196, 28512440, 32076495, 42768660, 51322392, 64152990, 85537320, 128305980, 256611960]

約数ペア:

[(1, 256611960), (2, 128305980), (3, 85537320), (4, 64152990), (5, 51322392), (6, 42768660), (8, 32076495), (9, 28512440), (10, 25661196), (11, 23328360), (12, 21384330), (15, 17107464), (18, 14256220), (20, 12830598), (22, 11664180), (24, 10692165), (30, 8553732), (33, 7776120), (36, 7128110), (40, 6415299), (43, 5967720), (44, 5832090), (45, 5702488), (55, 4665672), (60, 4276866), (66, 3888060), (72, 3564055), (86, 2983860), (88, 2916045), (90, 2851244), (99, 2592040), (110, 2332836), (120, 2138433), (121, 2120760), (129, 1989240), (132, 1944030), (137, 1873080), (165, 1555224), (172, 1491930), (180, 1425622), (198, 1296020), (215, 1193544), (220, 1166418), (242, 1060380), (258, 994620), (264, 972015), (274, 936540), (330, 777612), (344, 745965), (360, 712811), (363, 706920), (387, 663080), (396, 648010), (411, 624360), (430, 596772), (440, 583209), (473, 542520), (484, 530190), (495, 518408), (516, 497310), (548, 468270), (605, 424152), (645, 397848), (660, 388806), (685, 374616), (726, 353460), (774, 331540), (792, 324005), (822, 312180), (860, 298386), (946, 271260), (968, 265095), (990, 259204), (1032, 248655), (1089, 235640), (1096, 234135), (1210, 212076), (1233, 208120), (1290, 198924), (1320, 194403), (1370, 187308), (1419, 180840), (1452, 176730), (1507, 170280), (1548, 165770), (1644, 156090), (1720, 149193), (1815, 141384), (1892, 135630), (1935, 132616), (1980, 129602), (2055, 124872), (2178, 117820), (2365, 108504), (2420, 106038), (2466, 104060), (2580, 99462), (2740, 93654), (2838, 90420), (2904, 88365), (3014, 85140), (3096, 82885), (3288, 78045), (3630, 70692), (3784, 67815), (3870, 66308), (3960, 64801), (4110, 62436), (4257, 60280), (4356, 58910), (4521, 56760), (4730, 54252), (4840, 53019), (4932, 52030), (5160, 49731), (5203, 49320), (5445, 47128), (5480, 46827), (5676, 45210), (5891, 43560), (6028, 42570), (6165, 41624), (7095, 36168), (7260, 35346), (7535, 34056), (7740, 33154), (8220, 31218), (8514, 30140), (8712, 29455), (9042, 28380), (9460, 27126), (9864, 26015), (10406, 24660), (10890, 23564), (11352, 22605), (11782, 21780), (12056, 21285), (12330, 20812), (13563, 18920), (14190, 18084), (14520, 17673), (15070, 17028), (15480, 16577), (15609, 16440)]