1815920640

素因数分解:

$2^{14}\times 3^3\times 5^1\times {\mathrm{821}}^1$

素因数の和:863

約数の個数: 240

約数和(自身を含む): 6464273760

約数和(自身を除く): 4648353120

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, 54, 60, 64, 72, 80, 90, 96, 108, 120, 128, 135, 144, 160, 180, 192, 216, 240, 256, 270, 288, 320, 360, 384, 432, 480, 512, 540, 576, 640, 720, 768, 821, 864, 960, 1024, 1080, 1152, 1280, 1440, 1536, 1642, 1728, 1920, 2048, 2160, 2304, 2463, 2560, 2880, 3072, 3284, 3456, 3840, 4096, 4105, 4320, 4608, 4926, 5120, 5760, 6144, 6568, 6912, 7389, 7680, 8192, 8210, 8640, 9216, 9852, 10240, 11520, 12288, 12315, 13136, 13824, 14778, 15360, 16384, 16420, 17280, 18432, 19704, 20480, 22167, 23040, 24576, 24630, 26272, 27648, 29556, 30720, 32840, 34560, 36864, 36945, 39408, 40960, 44334, 46080, 49152, 49260, 52544, 55296, 59112, 61440, 65680, 69120, 73728, 73890, 78816, 81920, 88668, 92160, 98520, 105088, 110592, 110835, 118224, 122880, 131360, 138240, 147456, 147780, 157632, 177336, 184320, 197040, 210176, 221184, 221670, 236448, 245760, 262720, 276480, 295560, 315264, 354672, 368640, 394080, 420352, 442368, 443340, 472896, 525440, 552960, 591120, 630528, 709344, 737280, 788160, 840704, 886680, 945792, 1050880, 1105920, 1182240, 1261056, 1418688, 1576320, 1681408, 1773360, 1891584, 2101760, 2211840, 2364480, 2522112, 2837376, 3152640, 3362816, 3546720, 3783168, 4203520, 4728960, 5044224, 5674752, 6305280, 6725632, 7093440, 7566336, 8407040, 9457920, 10088448, 11349504, 12610560, 13451264, 14186880, 15132672, 16814080, 18915840, 20176896, 22699008, 25221120, 28373760, 30265344, 33628160, 37831680, 40353792, 45398016, 50442240, 56747520, 60530688, 67256320, 75663360, 90796032, 100884480, 113495040, 121061376, 151326720, 181592064, 201768960, 226990080, 302653440, 363184128, 453980160, 605306880, 907960320, 1815920640]

約数ペア:

[(1, 1815920640), (2, 907960320), (3, 605306880), (4, 453980160), (5, 363184128), (6, 302653440), (8, 226990080), (9, 201768960), (10, 181592064), (12, 151326720), (15, 121061376), (16, 113495040), (18, 100884480), (20, 90796032), (24, 75663360), (27, 67256320), (30, 60530688), (32, 56747520), (36, 50442240), (40, 45398016), (45, 40353792), (48, 37831680), (54, 33628160), (60, 30265344), (64, 28373760), (72, 25221120), (80, 22699008), (90, 20176896), (96, 18915840), (108, 16814080), (120, 15132672), (128, 14186880), (135, 13451264), (144, 12610560), (160, 11349504), (180, 10088448), (192, 9457920), (216, 8407040), (240, 7566336), (256, 7093440), (270, 6725632), (288, 6305280), (320, 5674752), (360, 5044224), (384, 4728960), (432, 4203520), (480, 3783168), (512, 3546720), (540, 3362816), (576, 3152640), (640, 2837376), (720, 2522112), (768, 2364480), (821, 2211840), (864, 2101760), (960, 1891584), (1024, 1773360), (1080, 1681408), (1152, 1576320), (1280, 1418688), (1440, 1261056), (1536, 1182240), (1642, 1105920), (1728, 1050880), (1920, 945792), (2048, 886680), (2160, 840704), (2304, 788160), (2463, 737280), (2560, 709344), (2880, 630528), (3072, 591120), (3284, 552960), (3456, 525440), (3840, 472896), (4096, 443340), (4105, 442368), (4320, 420352), (4608, 394080), (4926, 368640), (5120, 354672), (5760, 315264), (6144, 295560), (6568, 276480), (6912, 262720), (7389, 245760), (7680, 236448), (8192, 221670), (8210, 221184), (8640, 210176), (9216, 197040), (9852, 184320), (10240, 177336), (11520, 157632), (12288, 147780), (12315, 147456), (13136, 138240), (13824, 131360), (14778, 122880), (15360, 118224), (16384, 110835), (16420, 110592), (17280, 105088), (18432, 98520), (19704, 92160), (20480, 88668), (22167, 81920), (23040, 78816), (24576, 73890), (24630, 73728), (26272, 69120), (27648, 65680), (29556, 61440), (30720, 59112), (32840, 55296), (34560, 52544), (36864, 49260), (36945, 49152), (39408, 46080), (40960, 44334)]