28286280

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2381}}^1$

素因数の和:2412

約数の個数: 128

約数和(自身を含む): 102902400

約数和(自身を除く): 74616120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 27, 30, 33, 36, 40, 44, 45, 54, 55, 60, 66, 72, 88, 90, 99, 108, 110, 120, 132, 135, 165, 180, 198, 216, 220, 264, 270, 297, 330, 360, 396, 440, 495, 540, 594, 660, 792, 990, 1080, 1188, 1320, 1485, 1980, 2376, 2381, 2970, 3960, 4762, 5940, 7143, 9524, 11880, 11905, 14286, 19048, 21429, 23810, 26191, 28572, 35715, 42858, 47620, 52382, 57144, 64287, 71430, 78573, 85716, 95240, 104764, 107145, 128574, 130955, 142860, 157146, 171432, 209528, 214290, 235719, 257148, 261910, 285720, 314292, 321435, 392865, 428580, 471438, 514296, 523820, 628584, 642870, 707157, 785730, 857160, 942876, 1047640, 1178595, 1285740, 1414314, 1571460, 1885752, 2357190, 2571480, 2828628, 3142920, 3535785, 4714380, 5657256, 7071570, 9428760, 14143140, 28286280]

約数ペア:

[(1, 28286280), (2, 14143140), (3, 9428760), (4, 7071570), (5, 5657256), (6, 4714380), (8, 3535785), (9, 3142920), (10, 2828628), (11, 2571480), (12, 2357190), (15, 1885752), (18, 1571460), (20, 1414314), (22, 1285740), (24, 1178595), (27, 1047640), (30, 942876), (33, 857160), (36, 785730), (40, 707157), (44, 642870), (45, 628584), (54, 523820), (55, 514296), (60, 471438), (66, 428580), (72, 392865), (88, 321435), (90, 314292), (99, 285720), (108, 261910), (110, 257148), (120, 235719), (132, 214290), (135, 209528), (165, 171432), (180, 157146), (198, 142860), (216, 130955), (220, 128574), (264, 107145), (270, 104764), (297, 95240), (330, 85716), (360, 78573), (396, 71430), (440, 64287), (495, 57144), (540, 52382), (594, 47620), (660, 42858), (792, 35715), (990, 28572), (1080, 26191), (1188, 23810), (1320, 21429), (1485, 19048), (1980, 14286), (2376, 11905), (2381, 11880), (2970, 9524), (3960, 7143), (4762, 5940)]