256181940

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1$

素因数の和:117

約数の個数: 480

約数和(自身を含む): 1024531200

約数和(自身を除く): 768349260

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 27, 28, 29, 30, 35, 36, 38, 41, 42, 45, 54, 57, 58, 60, 63, 70, 76, 81, 82, 84, 87, 90, 95, 105, 108, 114, 116, 123, 126, 133, 135, 140, 145, 162, 164, 171, 174, 180, 189, 190, 203, 205, 210, 228, 246, 252, 261, 266, 270, 285, 287, 290, 315, 324, 342, 348, 369, 378, 380, 399, 405, 406, 410, 420, 435, 492, 513, 522, 532, 540, 551, 567, 570, 574, 580, 609, 615, 630, 665, 684, 738, 756, 779, 783, 798, 810, 812, 820, 855, 861, 870, 945, 1015, 1026, 1044, 1102, 1107, 1134, 1140, 1148, 1189, 1197, 1218, 1230, 1260, 1305, 1330, 1435, 1476, 1539, 1558, 1566, 1596, 1620, 1653, 1710, 1722, 1740, 1827, 1845, 1890, 1995, 2030, 2052, 2204, 2214, 2268, 2337, 2349, 2378, 2394, 2436, 2460, 2565, 2583, 2610, 2660, 2755, 2835, 2870, 3045, 3078, 3116, 3132, 3306, 3321, 3420, 3444, 3567, 3591, 3654, 3690, 3780, 3857, 3895, 3915, 3990, 4060, 4305, 4428, 4674, 4698, 4756, 4788, 4959, 5130, 5166, 5220, 5453, 5481, 5510, 5535, 5670, 5740, 5945, 5985, 6090, 6156, 6612, 6642, 7011, 7134, 7182, 7308, 7380, 7695, 7714, 7749, 7790, 7830, 7980, 8265, 8323, 8610, 9135, 9348, 9396, 9918, 10260, 10332, 10701, 10773, 10906, 10962, 11020, 11070, 11340, 11571, 11685, 11745, 11890, 11970, 12180, 12915, 13284, 14022, 14268, 14364, 14877, 15390, 15428, 15498, 15580, 15660, 16359, 16443, 16530, 16605, 16646, 17220, 17835, 17955, 18270, 19285, 19836, 21033, 21402, 21546, 21812, 21924, 22140, 22591, 23142, 23247, 23370, 23490, 23780, 23940, 24795, 24969, 25830, 27265, 27405, 28044, 29754, 30780, 30996, 32103, 32718, 32886, 33060, 33210, 33292, 34713, 35055, 35670, 35910, 36540, 38570, 38745, 41615, 42066, 42804, 43092, 44631, 45182, 46284, 46494, 46740, 46980, 49077, 49590, 49938, 51660, 53505, 53865, 54530, 54810, 57855, 59508, 63099, 64206, 65436, 65772, 66420, 67773, 69426, 70110, 71340, 71820, 74385, 74907, 77140, 77490, 81795, 82215, 83230, 84132, 89262, 90364, 92988, 96309, 98154, 99180, 99876, 104139, 105165, 107010, 107730, 109060, 109620, 112955, 115710, 116235, 124845, 126198, 128412, 135546, 138852, 140220, 147231, 148770, 149814, 154980, 158137, 160515, 163590, 164430, 166460, 173565, 178524, 192618, 196308, 203319, 208278, 210330, 214020, 215460, 223155, 224721, 225910, 231420, 232470, 245385, 249690, 252396, 271092, 294462, 297540, 299628, 312417, 315495, 316274, 321030, 327180, 328860, 338865, 347130, 374535, 385236, 406638, 416556, 420660, 441693, 446310, 449442, 451820, 464940, 474411, 481545, 490770, 499380, 520695, 588924, 609957, 624834, 630990, 632548, 642060, 674163, 677730, 694260, 736155, 749070, 790685, 813276, 883386, 892620, 898884, 948822, 963090, 981540, 1016595, 1041390, 1123605, 1219914, 1249668, 1261980, 1348326, 1355460, 1423233, 1472310, 1498140, 1562085, 1581370, 1766772, 1829871, 1897644, 1926180, 2033190, 2082780, 2208465, 2247210, 2372055, 2439828, 2696652, 2846466, 2944620, 3049785, 3124170, 3162740, 3370815, 3659742, 4066380, 4269699, 4416930, 4494420, 4744110, 5692932, 6099570, 6248340, 6741630, 7116165, 7319484, 8539398, 8833860, 9149355, 9488220, 12199140, 12809097, 13483260, 14232330, 17078796, 18298710, 21348495, 25618194, 28464660, 36597420, 42696990, 51236388, 64045485, 85393980, 128090970, 256181940]

約数ペア:

[(1, 256181940), (2, 128090970), (3, 85393980), (4, 64045485), (5, 51236388), (6, 42696990), (7, 36597420), (9, 28464660), (10, 25618194), (12, 21348495), (14, 18298710), (15, 17078796), (18, 14232330), (19, 13483260), (20, 12809097), (21, 12199140), (27, 9488220), (28, 9149355), (29, 8833860), (30, 8539398), (35, 7319484), (36, 7116165), (38, 6741630), (41, 6248340), (42, 6099570), (45, 5692932), (54, 4744110), (57, 4494420), (58, 4416930), (60, 4269699), (63, 4066380), (70, 3659742), (76, 3370815), (81, 3162740), (82, 3124170), (84, 3049785), (87, 2944620), (90, 2846466), (95, 2696652), (105, 2439828), (108, 2372055), (114, 2247210), (116, 2208465), (123, 2082780), (126, 2033190), (133, 1926180), (135, 1897644), (140, 1829871), (145, 1766772), (162, 1581370), (164, 1562085), (171, 1498140), (174, 1472310), (180, 1423233), (189, 1355460), (190, 1348326), (203, 1261980), (205, 1249668), (210, 1219914), (228, 1123605), (246, 1041390), (252, 1016595), (261, 981540), (266, 963090), (270, 948822), (285, 898884), (287, 892620), (290, 883386), (315, 813276), (324, 790685), (342, 749070), (348, 736155), (369, 694260), (378, 677730), (380, 674163), (399, 642060), (405, 632548), (406, 630990), (410, 624834), (420, 609957), (435, 588924), (492, 520695), (513, 499380), (522, 490770), (532, 481545), (540, 474411), (551, 464940), (567, 451820), (570, 449442), (574, 446310), (580, 441693), (609, 420660), (615, 416556), (630, 406638), (665, 385236), (684, 374535), (738, 347130), (756, 338865), (779, 328860), (783, 327180), (798, 321030), (810, 316274), (812, 315495), (820, 312417), (855, 299628), (861, 297540), (870, 294462), (945, 271092), (1015, 252396), (1026, 249690), (1044, 245385), (1102, 232470), (1107, 231420), (1134, 225910), (1140, 224721), (1148, 223155), (1189, 215460), (1197, 214020), (1218, 210330), (1230, 208278), (1260, 203319), (1305, 196308), (1330, 192618), (1435, 178524), (1476, 173565), (1539, 166460), (1558, 164430), (1566, 163590), (1596, 160515), (1620, 158137), (1653, 154980), (1710, 149814), (1722, 148770), (1740, 147231), (1827, 140220), (1845, 138852), (1890, 135546), (1995, 128412), (2030, 126198), (2052, 124845), (2204, 116235), (2214, 115710), (2268, 112955), (2337, 109620), (2349, 109060), (2378, 107730), (2394, 107010), (2436, 105165), (2460, 104139), (2565, 99876), (2583, 99180), (2610, 98154), (2660, 96309), (2755, 92988), (2835, 90364), (2870, 89262), (3045, 84132), (3078, 83230), (3116, 82215), (3132, 81795), (3306, 77490), (3321, 77140), (3420, 74907), (3444, 74385), (3567, 71820), (3591, 71340), (3654, 70110), (3690, 69426), (3780, 67773), (3857, 66420), (3895, 65772), (3915, 65436), (3990, 64206), (4060, 63099), (4305, 59508), (4428, 57855), (4674, 54810), (4698, 54530), (4756, 53865), (4788, 53505), (4959, 51660), (5130, 49938), (5166, 49590), (5220, 49077), (5453, 46980), (5481, 46740), (5510, 46494), (5535, 46284), (5670, 45182), (5740, 44631), (5945, 43092), (5985, 42804), (6090, 42066), (6156, 41615), (6612, 38745), (6642, 38570), (7011, 36540), (7134, 35910), (7182, 35670), (7308, 35055), (7380, 34713), (7695, 33292), (7714, 33210), (7749, 33060), (7790, 32886), (7830, 32718), (7980, 32103), (8265, 30996), (8323, 30780), (8610, 29754), (9135, 28044), (9348, 27405), (9396, 27265), (9918, 25830), (10260, 24969), (10332, 24795), (10701, 23940), (10773, 23780), (10906, 23490), (10962, 23370), (11020, 23247), (11070, 23142), (11340, 22591), (11571, 22140), (11685, 21924), (11745, 21812), (11890, 21546), (11970, 21402), (12180, 21033), (12915, 19836), (13284, 19285), (14022, 18270), (14268, 17955), (14364, 17835), (14877, 17220), (15390, 16646), (15428, 16605), (15498, 16530), (15580, 16443), (15660, 16359)]