257988240

素因数分解:

$2^4\times 3^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{577}}^1$

素因数の和:628

約数の個数: 240

約数和(自身を含む): 939189888

約数和(自身を除く): 681201648

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 27, 30, 36, 40, 45, 46, 48, 54, 60, 69, 72, 80, 81, 90, 92, 108, 115, 120, 135, 138, 144, 162, 180, 184, 207, 216, 230, 240, 243, 270, 276, 324, 345, 360, 368, 405, 414, 432, 460, 486, 540, 552, 577, 621, 648, 690, 720, 810, 828, 920, 972, 1035, 1080, 1104, 1154, 1215, 1242, 1296, 1380, 1620, 1656, 1731, 1840, 1863, 1944, 2070, 2160, 2308, 2430, 2484, 2760, 2885, 3105, 3240, 3312, 3462, 3726, 3888, 4140, 4616, 4860, 4968, 5193, 5520, 5589, 5770, 6210, 6480, 6924, 7452, 8280, 8655, 9232, 9315, 9720, 9936, 10386, 11178, 11540, 12420, 13271, 13848, 14904, 15579, 16560, 17310, 18630, 19440, 20772, 22356, 23080, 24840, 25965, 26542, 27696, 27945, 29808, 31158, 34620, 37260, 39813, 41544, 44712, 46160, 46737, 49680, 51930, 53084, 55890, 62316, 66355, 69240, 74520, 77895, 79626, 83088, 89424, 93474, 103860, 106168, 111780, 119439, 124632, 132710, 138480, 140211, 149040, 155790, 159252, 186948, 199065, 207720, 212336, 223560, 233685, 238878, 249264, 265420, 280422, 311580, 318504, 358317, 373896, 398130, 415440, 447120, 467370, 477756, 530840, 560844, 597195, 623160, 637008, 701055, 716634, 747792, 796260, 934740, 955512, 1061680, 1074951, 1121688, 1194390, 1246320, 1402110, 1433268, 1592520, 1791585, 1869480, 1911024, 2149902, 2243376, 2388780, 2804220, 2866536, 3185040, 3224853, 3583170, 3738960, 4299804, 4777560, 5374755, 5608440, 5733072, 6449706, 7166340, 8599608, 9555120, 10749510, 11216880, 12899412, 14332680, 16124265, 17199216, 21499020, 25798824, 28665360, 32248530, 42998040, 51597648, 64497060, 85996080, 128994120, 257988240]

約数ペア:

[(1, 257988240), (2, 128994120), (3, 85996080), (4, 64497060), (5, 51597648), (6, 42998040), (8, 32248530), (9, 28665360), (10, 25798824), (12, 21499020), (15, 17199216), (16, 16124265), (18, 14332680), (20, 12899412), (23, 11216880), (24, 10749510), (27, 9555120), (30, 8599608), (36, 7166340), (40, 6449706), (45, 5733072), (46, 5608440), (48, 5374755), (54, 4777560), (60, 4299804), (69, 3738960), (72, 3583170), (80, 3224853), (81, 3185040), (90, 2866536), (92, 2804220), (108, 2388780), (115, 2243376), (120, 2149902), (135, 1911024), (138, 1869480), (144, 1791585), (162, 1592520), (180, 1433268), (184, 1402110), (207, 1246320), (216, 1194390), (230, 1121688), (240, 1074951), (243, 1061680), (270, 955512), (276, 934740), (324, 796260), (345, 747792), (360, 716634), (368, 701055), (405, 637008), (414, 623160), (432, 597195), (460, 560844), (486, 530840), (540, 477756), (552, 467370), (577, 447120), (621, 415440), (648, 398130), (690, 373896), (720, 358317), (810, 318504), (828, 311580), (920, 280422), (972, 265420), (1035, 249264), (1080, 238878), (1104, 233685), (1154, 223560), (1215, 212336), (1242, 207720), (1296, 199065), (1380, 186948), (1620, 159252), (1656, 155790), (1731, 149040), (1840, 140211), (1863, 138480), (1944, 132710), (2070, 124632), (2160, 119439), (2308, 111780), (2430, 106168), (2484, 103860), (2760, 93474), (2885, 89424), (3105, 83088), (3240, 79626), (3312, 77895), (3462, 74520), (3726, 69240), (3888, 66355), (4140, 62316), (4616, 55890), (4860, 53084), (4968, 51930), (5193, 49680), (5520, 46737), (5589, 46160), (5770, 44712), (6210, 41544), (6480, 39813), (6924, 37260), (7452, 34620), (8280, 31158), (8655, 29808), (9232, 27945), (9315, 27696), (9720, 26542), (9936, 25965), (10386, 24840), (11178, 23080), (11540, 22356), (12420, 20772), (13271, 19440), (13848, 18630), (14904, 17310), (15579, 16560)]