51821280

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1$

素因数の和:178

約数の個数: 288

約数和(自身を含む): 208039104

約数和(自身を除く): 156217824

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, 53, 56, 60, 63, 70, 72, 80, 84, 90, 96, 97, 105, 106, 112, 120, 126, 140, 144, 159, 160, 168, 180, 194, 210, 212, 224, 240, 252, 265, 280, 288, 291, 315, 318, 336, 360, 371, 388, 420, 424, 477, 480, 485, 504, 530, 560, 582, 630, 636, 672, 679, 720, 742, 776, 795, 840, 848, 873, 954, 970, 1008, 1060, 1113, 1120, 1164, 1260, 1272, 1358, 1440, 1455, 1484, 1552, 1590, 1680, 1696, 1746, 1855, 1908, 1940, 2016, 2037, 2120, 2226, 2328, 2385, 2520, 2544, 2716, 2910, 2968, 3104, 3180, 3339, 3360, 3395, 3492, 3710, 3816, 3880, 4074, 4240, 4365, 4452, 4656, 4770, 5040, 5088, 5141, 5432, 5565, 5820, 5936, 6111, 6360, 6678, 6790, 6984, 7420, 7632, 7760, 8148, 8480, 8730, 8904, 9312, 9540, 10080, 10185, 10282, 10864, 11130, 11640, 11872, 12222, 12720, 13356, 13580, 13968, 14840, 15264, 15423, 15520, 16296, 16695, 17460, 17808, 19080, 20370, 20564, 21728, 22260, 23280, 24444, 25440, 25705, 26712, 27160, 27936, 29680, 30555, 30846, 32592, 33390, 34920, 35616, 35987, 38160, 40740, 41128, 44520, 46269, 46560, 48888, 51410, 53424, 54320, 59360, 61110, 61692, 65184, 66780, 69840, 71974, 76320, 77115, 81480, 82256, 89040, 92538, 97776, 102820, 106848, 107961, 108640, 122220, 123384, 133560, 139680, 143948, 154230, 162960, 164512, 178080, 179935, 185076, 195552, 205640, 215922, 231345, 244440, 246768, 267120, 287896, 308460, 323883, 325920, 359870, 370152, 411280, 431844, 462690, 488880, 493536, 534240, 539805, 575792, 616920, 647766, 719740, 740304, 822560, 863688, 925380, 977760, 1079610, 1151584, 1233840, 1295532, 1439480, 1480608, 1619415, 1727376, 1850760, 2159220, 2467680, 2591064, 2878960, 3238830, 3454752, 3701520, 4318440, 5182128, 5757920, 6477660, 7403040, 8636880, 10364256, 12955320, 17273760, 25910640, 51821280]

約数ペア:

[(1, 51821280), (2, 25910640), (3, 17273760), (4, 12955320), (5, 10364256), (6, 8636880), (7, 7403040), (8, 6477660), (9, 5757920), (10, 5182128), (12, 4318440), (14, 3701520), (15, 3454752), (16, 3238830), (18, 2878960), (20, 2591064), (21, 2467680), (24, 2159220), (28, 1850760), (30, 1727376), (32, 1619415), (35, 1480608), (36, 1439480), (40, 1295532), (42, 1233840), (45, 1151584), (48, 1079610), (53, 977760), (56, 925380), (60, 863688), (63, 822560), (70, 740304), (72, 719740), (80, 647766), (84, 616920), (90, 575792), (96, 539805), (97, 534240), (105, 493536), (106, 488880), (112, 462690), (120, 431844), (126, 411280), (140, 370152), (144, 359870), (159, 325920), (160, 323883), (168, 308460), (180, 287896), (194, 267120), (210, 246768), (212, 244440), (224, 231345), (240, 215922), (252, 205640), (265, 195552), (280, 185076), (288, 179935), (291, 178080), (315, 164512), (318, 162960), (336, 154230), (360, 143948), (371, 139680), (388, 133560), (420, 123384), (424, 122220), (477, 108640), (480, 107961), (485, 106848), (504, 102820), (530, 97776), (560, 92538), (582, 89040), (630, 82256), (636, 81480), (672, 77115), (679, 76320), (720, 71974), (742, 69840), (776, 66780), (795, 65184), (840, 61692), (848, 61110), (873, 59360), (954, 54320), (970, 53424), (1008, 51410), (1060, 48888), (1113, 46560), (1120, 46269), (1164, 44520), (1260, 41128), (1272, 40740), (1358, 38160), (1440, 35987), (1455, 35616), (1484, 34920), (1552, 33390), (1590, 32592), (1680, 30846), (1696, 30555), (1746, 29680), (1855, 27936), (1908, 27160), (1940, 26712), (2016, 25705), (2037, 25440), (2120, 24444), (2226, 23280), (2328, 22260), (2385, 21728), (2520, 20564), (2544, 20370), (2716, 19080), (2910, 17808), (2968, 17460), (3104, 16695), (3180, 16296), (3339, 15520), (3360, 15423), (3395, 15264), (3492, 14840), (3710, 13968), (3816, 13580), (3880, 13356), (4074, 12720), (4240, 12222), (4365, 11872), (4452, 11640), (4656, 11130), (4770, 10864), (5040, 10282), (5088, 10185), (5141, 10080), (5432, 9540), (5565, 9312), (5820, 8904), (5936, 8730), (6111, 8480), (6360, 8148), (6678, 7760), (6790, 7632), (6984, 7420)]