28765440

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{227}}^1$

素因数の和:265

約数の個数: 216

約数和(自身を含む): 109051488

約数和(自身を除く): 80286048

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 32, 33, 36, 40, 44, 45, 48, 55, 60, 64, 66, 72, 80, 88, 90, 96, 99, 110, 120, 128, 132, 144, 160, 165, 176, 180, 192, 198, 220, 227, 240, 256, 264, 288, 320, 330, 352, 360, 384, 396, 440, 454, 480, 495, 528, 576, 640, 660, 681, 704, 720, 768, 792, 880, 908, 960, 990, 1056, 1135, 1152, 1280, 1320, 1362, 1408, 1440, 1584, 1760, 1816, 1920, 1980, 2043, 2112, 2270, 2304, 2497, 2640, 2724, 2816, 2880, 3168, 3405, 3520, 3632, 3840, 3960, 4086, 4224, 4540, 4994, 5280, 5448, 5760, 6336, 6810, 7040, 7264, 7491, 7920, 8172, 8448, 9080, 9988, 10215, 10560, 10896, 11520, 12485, 12672, 13620, 14080, 14528, 14982, 15840, 16344, 18160, 19976, 20430, 21120, 21792, 22473, 24970, 25344, 27240, 29056, 29964, 31680, 32688, 36320, 37455, 39952, 40860, 42240, 43584, 44946, 49940, 54480, 58112, 59928, 63360, 65376, 72640, 74910, 79904, 81720, 87168, 89892, 99880, 108960, 112365, 119856, 126720, 130752, 145280, 149820, 159808, 163440, 174336, 179784, 199760, 217920, 224730, 239712, 261504, 290560, 299640, 319616, 326880, 359568, 399520, 435840, 449460, 479424, 523008, 599280, 639232, 653760, 719136, 799040, 871680, 898920, 958848, 1198560, 1307520, 1438272, 1598080, 1797840, 1917696, 2397120, 2615040, 2876544, 3196160, 3595680, 4794240, 5753088, 7191360, 9588480, 14382720, 28765440]

約数ペア:

[(1, 28765440), (2, 14382720), (3, 9588480), (4, 7191360), (5, 5753088), (6, 4794240), (8, 3595680), (9, 3196160), (10, 2876544), (11, 2615040), (12, 2397120), (15, 1917696), (16, 1797840), (18, 1598080), (20, 1438272), (22, 1307520), (24, 1198560), (30, 958848), (32, 898920), (33, 871680), (36, 799040), (40, 719136), (44, 653760), (45, 639232), (48, 599280), (55, 523008), (60, 479424), (64, 449460), (66, 435840), (72, 399520), (80, 359568), (88, 326880), (90, 319616), (96, 299640), (99, 290560), (110, 261504), (120, 239712), (128, 224730), (132, 217920), (144, 199760), (160, 179784), (165, 174336), (176, 163440), (180, 159808), (192, 149820), (198, 145280), (220, 130752), (227, 126720), (240, 119856), (256, 112365), (264, 108960), (288, 99880), (320, 89892), (330, 87168), (352, 81720), (360, 79904), (384, 74910), (396, 72640), (440, 65376), (454, 63360), (480, 59928), (495, 58112), (528, 54480), (576, 49940), (640, 44946), (660, 43584), (681, 42240), (704, 40860), (720, 39952), (768, 37455), (792, 36320), (880, 32688), (908, 31680), (960, 29964), (990, 29056), (1056, 27240), (1135, 25344), (1152, 24970), (1280, 22473), (1320, 21792), (1362, 21120), (1408, 20430), (1440, 19976), (1584, 18160), (1760, 16344), (1816, 15840), (1920, 14982), (1980, 14528), (2043, 14080), (2112, 13620), (2270, 12672), (2304, 12485), (2497, 11520), (2640, 10896), (2724, 10560), (2816, 10215), (2880, 9988), (3168, 9080), (3405, 8448), (3520, 8172), (3632, 7920), (3840, 7491), (3960, 7264), (4086, 7040), (4224, 6810), (4540, 6336), (4994, 5760), (5280, 5448)]