257808960

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{563}}^1$

素因数の和:642

約数の個数: 224

約数和(自身を含む): 928298880

約数和(自身を除く): 670489920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 53, 54, 60, 64, 72, 80, 90, 96, 106, 108, 120, 135, 144, 159, 160, 180, 192, 212, 216, 240, 265, 270, 288, 318, 320, 360, 424, 432, 477, 480, 530, 540, 563, 576, 636, 720, 795, 848, 864, 954, 960, 1060, 1080, 1126, 1272, 1431, 1440, 1590, 1689, 1696, 1728, 1908, 2120, 2160, 2252, 2385, 2544, 2815, 2862, 2880, 3180, 3378, 3392, 3816, 4240, 4320, 4504, 4770, 5067, 5088, 5630, 5724, 6360, 6756, 7155, 7632, 8445, 8480, 8640, 9008, 9540, 10134, 10176, 11260, 11448, 12720, 13512, 14310, 15201, 15264, 16890, 16960, 18016, 19080, 20268, 22520, 22896, 25335, 25440, 27024, 28620, 29839, 30402, 30528, 33780, 36032, 38160, 40536, 45040, 45792, 50670, 50880, 54048, 57240, 59678, 60804, 67560, 76005, 76320, 81072, 89517, 90080, 91584, 101340, 108096, 114480, 119356, 121608, 135120, 149195, 152010, 152640, 162144, 179034, 180160, 202680, 228960, 238712, 243216, 268551, 270240, 298390, 304020, 324288, 358068, 405360, 447585, 457920, 477424, 486432, 537102, 540480, 596780, 608040, 716136, 805653, 810720, 895170, 954848, 972864, 1074204, 1193560, 1216080, 1342755, 1432272, 1611306, 1621440, 1790340, 1909696, 2148408, 2387120, 2432160, 2685510, 2864544, 3222612, 3580680, 4028265, 4296816, 4774240, 4864320, 5371020, 5729088, 6445224, 7161360, 8056530, 8593632, 9548480, 10742040, 12890448, 14322720, 16113060, 17187264, 21484080, 25780896, 28645440, 32226120, 42968160, 51561792, 64452240, 85936320, 128904480, 257808960]

約数ペア:

[(1, 257808960), (2, 128904480), (3, 85936320), (4, 64452240), (5, 51561792), (6, 42968160), (8, 32226120), (9, 28645440), (10, 25780896), (12, 21484080), (15, 17187264), (16, 16113060), (18, 14322720), (20, 12890448), (24, 10742040), (27, 9548480), (30, 8593632), (32, 8056530), (36, 7161360), (40, 6445224), (45, 5729088), (48, 5371020), (53, 4864320), (54, 4774240), (60, 4296816), (64, 4028265), (72, 3580680), (80, 3222612), (90, 2864544), (96, 2685510), (106, 2432160), (108, 2387120), (120, 2148408), (135, 1909696), (144, 1790340), (159, 1621440), (160, 1611306), (180, 1432272), (192, 1342755), (212, 1216080), (216, 1193560), (240, 1074204), (265, 972864), (270, 954848), (288, 895170), (318, 810720), (320, 805653), (360, 716136), (424, 608040), (432, 596780), (477, 540480), (480, 537102), (530, 486432), (540, 477424), (563, 457920), (576, 447585), (636, 405360), (720, 358068), (795, 324288), (848, 304020), (864, 298390), (954, 270240), (960, 268551), (1060, 243216), (1080, 238712), (1126, 228960), (1272, 202680), (1431, 180160), (1440, 179034), (1590, 162144), (1689, 152640), (1696, 152010), (1728, 149195), (1908, 135120), (2120, 121608), (2160, 119356), (2252, 114480), (2385, 108096), (2544, 101340), (2815, 91584), (2862, 90080), (2880, 89517), (3180, 81072), (3378, 76320), (3392, 76005), (3816, 67560), (4240, 60804), (4320, 59678), (4504, 57240), (4770, 54048), (5067, 50880), (5088, 50670), (5630, 45792), (5724, 45040), (6360, 40536), (6756, 38160), (7155, 36032), (7632, 33780), (8445, 30528), (8480, 30402), (8640, 29839), (9008, 28620), (9540, 27024), (10134, 25440), (10176, 25335), (11260, 22896), (11448, 22520), (12720, 20268), (13512, 19080), (14310, 18016), (15201, 16960), (15264, 16890)]