255390720

素因数分解:

$2^{10}\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1279}}^1$

素因数の和:1320

約数の個数: 176

約数和(自身を含む): 880373760

約数和(自身を除く): 624983040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 128, 130, 156, 160, 192, 195, 208, 240, 256, 260, 312, 320, 384, 390, 416, 480, 512, 520, 624, 640, 768, 780, 832, 960, 1024, 1040, 1248, 1279, 1280, 1536, 1560, 1664, 1920, 2080, 2496, 2558, 2560, 3072, 3120, 3328, 3837, 3840, 4160, 4992, 5116, 5120, 6240, 6395, 6656, 7674, 7680, 8320, 9984, 10232, 12480, 12790, 13312, 15348, 15360, 16627, 16640, 19185, 19968, 20464, 24960, 25580, 30696, 33254, 33280, 38370, 39936, 40928, 49881, 49920, 51160, 61392, 66508, 66560, 76740, 81856, 83135, 99762, 99840, 102320, 122784, 133016, 153480, 163712, 166270, 199524, 199680, 204640, 245568, 249405, 266032, 306960, 327424, 332540, 399048, 409280, 491136, 498810, 532064, 613920, 654848, 665080, 798096, 818560, 982272, 997620, 1064128, 1227840, 1309696, 1330160, 1596192, 1637120, 1964544, 1995240, 2128256, 2455680, 2660320, 3192384, 3274240, 3929088, 3990480, 4256512, 4911360, 5320640, 6384768, 6548480, 7980960, 8513024, 9822720, 10641280, 12769536, 15961920, 17026048, 19645440, 21282560, 25539072, 31923840, 42565120, 51078144, 63847680, 85130240, 127695360, 255390720]

約数ペア:

[(1, 255390720), (2, 127695360), (3, 85130240), (4, 63847680), (5, 51078144), (6, 42565120), (8, 31923840), (10, 25539072), (12, 21282560), (13, 19645440), (15, 17026048), (16, 15961920), (20, 12769536), (24, 10641280), (26, 9822720), (30, 8513024), (32, 7980960), (39, 6548480), (40, 6384768), (48, 5320640), (52, 4911360), (60, 4256512), (64, 3990480), (65, 3929088), (78, 3274240), (80, 3192384), (96, 2660320), (104, 2455680), (120, 2128256), (128, 1995240), (130, 1964544), (156, 1637120), (160, 1596192), (192, 1330160), (195, 1309696), (208, 1227840), (240, 1064128), (256, 997620), (260, 982272), (312, 818560), (320, 798096), (384, 665080), (390, 654848), (416, 613920), (480, 532064), (512, 498810), (520, 491136), (624, 409280), (640, 399048), (768, 332540), (780, 327424), (832, 306960), (960, 266032), (1024, 249405), (1040, 245568), (1248, 204640), (1279, 199680), (1280, 199524), (1536, 166270), (1560, 163712), (1664, 153480), (1920, 133016), (2080, 122784), (2496, 102320), (2558, 99840), (2560, 99762), (3072, 83135), (3120, 81856), (3328, 76740), (3837, 66560), (3840, 66508), (4160, 61392), (4992, 51160), (5116, 49920), (5120, 49881), (6240, 40928), (6395, 39936), (6656, 38370), (7674, 33280), (7680, 33254), (8320, 30696), (9984, 25580), (10232, 24960), (12480, 20464), (12790, 19968), (13312, 19185), (15348, 16640), (15360, 16627)]