28658880

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1$

素因数の和:164

約数の個数: 224

約数和(自身を含む): 105338880

約数和(自身を除く): 76680000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 31, 32, 36, 40, 45, 48, 54, 60, 62, 64, 72, 80, 90, 93, 96, 107, 108, 120, 124, 135, 144, 155, 160, 180, 186, 192, 214, 216, 240, 248, 270, 279, 288, 310, 320, 321, 360, 372, 428, 432, 465, 480, 496, 535, 540, 558, 576, 620, 642, 720, 744, 837, 856, 864, 930, 960, 963, 992, 1070, 1080, 1116, 1240, 1284, 1395, 1440, 1488, 1605, 1674, 1712, 1728, 1860, 1926, 1984, 2140, 2160, 2232, 2480, 2568, 2790, 2880, 2889, 2976, 3210, 3317, 3348, 3424, 3720, 3852, 4185, 4280, 4320, 4464, 4815, 4960, 5136, 5580, 5778, 5952, 6420, 6634, 6696, 6848, 7440, 7704, 8370, 8560, 8640, 8928, 9630, 9920, 9951, 10272, 11160, 11556, 12840, 13268, 13392, 14445, 14880, 15408, 16585, 16740, 17120, 17856, 19260, 19902, 20544, 22320, 23112, 25680, 26536, 26784, 28890, 29760, 29853, 30816, 33170, 33480, 34240, 38520, 39804, 44640, 46224, 49755, 51360, 53072, 53568, 57780, 59706, 61632, 66340, 66960, 77040, 79608, 89280, 89559, 92448, 99510, 102720, 106144, 115560, 119412, 132680, 133920, 149265, 154080, 159216, 179118, 184896, 199020, 212288, 231120, 238824, 265360, 267840, 298530, 308160, 318432, 358236, 398040, 447795, 462240, 477648, 530720, 597060, 636864, 716472, 796080, 895590, 924480, 955296, 1061440, 1194120, 1432944, 1592160, 1791180, 1910592, 2388240, 2865888, 3184320, 3582360, 4776480, 5731776, 7164720, 9552960, 14329440, 28658880]

約数ペア:

[(1, 28658880), (2, 14329440), (3, 9552960), (4, 7164720), (5, 5731776), (6, 4776480), (8, 3582360), (9, 3184320), (10, 2865888), (12, 2388240), (15, 1910592), (16, 1791180), (18, 1592160), (20, 1432944), (24, 1194120), (27, 1061440), (30, 955296), (31, 924480), (32, 895590), (36, 796080), (40, 716472), (45, 636864), (48, 597060), (54, 530720), (60, 477648), (62, 462240), (64, 447795), (72, 398040), (80, 358236), (90, 318432), (93, 308160), (96, 298530), (107, 267840), (108, 265360), (120, 238824), (124, 231120), (135, 212288), (144, 199020), (155, 184896), (160, 179118), (180, 159216), (186, 154080), (192, 149265), (214, 133920), (216, 132680), (240, 119412), (248, 115560), (270, 106144), (279, 102720), (288, 99510), (310, 92448), (320, 89559), (321, 89280), (360, 79608), (372, 77040), (428, 66960), (432, 66340), (465, 61632), (480, 59706), (496, 57780), (535, 53568), (540, 53072), (558, 51360), (576, 49755), (620, 46224), (642, 44640), (720, 39804), (744, 38520), (837, 34240), (856, 33480), (864, 33170), (930, 30816), (960, 29853), (963, 29760), (992, 28890), (1070, 26784), (1080, 26536), (1116, 25680), (1240, 23112), (1284, 22320), (1395, 20544), (1440, 19902), (1488, 19260), (1605, 17856), (1674, 17120), (1712, 16740), (1728, 16585), (1860, 15408), (1926, 14880), (1984, 14445), (2140, 13392), (2160, 13268), (2232, 12840), (2480, 11556), (2568, 11160), (2790, 10272), (2880, 9951), (2889, 9920), (2976, 9630), (3210, 8928), (3317, 8640), (3348, 8560), (3424, 8370), (3720, 7704), (3852, 7440), (4185, 6848), (4280, 6696), (4320, 6634), (4464, 6420), (4815, 5952), (4960, 5778), (5136, 5580)]