642908160

素因数分解:

$2^{17}\times 3^2\times 5^1\times {\mathrm{109}}^1$

素因数の和:154

約数の個数: 216

約数和(自身を含む): 2249186940

約数和(自身を除く): 1606278780

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 109, 120, 128, 144, 160, 180, 192, 218, 240, 256, 288, 320, 327, 360, 384, 436, 480, 512, 545, 576, 640, 654, 720, 768, 872, 960, 981, 1024, 1090, 1152, 1280, 1308, 1440, 1536, 1635, 1744, 1920, 1962, 2048, 2180, 2304, 2560, 2616, 2880, 3072, 3270, 3488, 3840, 3924, 4096, 4360, 4608, 4905, 5120, 5232, 5760, 6144, 6540, 6976, 7680, 7848, 8192, 8720, 9216, 9810, 10240, 10464, 11520, 12288, 13080, 13952, 15360, 15696, 16384, 17440, 18432, 19620, 20480, 20928, 23040, 24576, 26160, 27904, 30720, 31392, 32768, 34880, 36864, 39240, 40960, 41856, 46080, 49152, 52320, 55808, 61440, 62784, 65536, 69760, 73728, 78480, 81920, 83712, 92160, 98304, 104640, 111616, 122880, 125568, 131072, 139520, 147456, 156960, 163840, 167424, 184320, 196608, 209280, 223232, 245760, 251136, 279040, 294912, 313920, 327680, 334848, 368640, 393216, 418560, 446464, 491520, 502272, 558080, 589824, 627840, 655360, 669696, 737280, 837120, 892928, 983040, 1004544, 1116160, 1179648, 1255680, 1339392, 1474560, 1674240, 1785856, 1966080, 2009088, 2232320, 2511360, 2678784, 2949120, 3348480, 3571712, 4018176, 4464640, 5022720, 5357568, 5898240, 6696960, 7143424, 8036352, 8929280, 10045440, 10715136, 13393920, 14286848, 16072704, 17858560, 20090880, 21430272, 26787840, 32145408, 35717120, 40181760, 42860544, 53575680, 64290816, 71434240, 80363520, 107151360, 128581632, 160727040, 214302720, 321454080, 642908160]

約数ペア:

[(1, 642908160), (2, 321454080), (3, 214302720), (4, 160727040), (5, 128581632), (6, 107151360), (8, 80363520), (9, 71434240), (10, 64290816), (12, 53575680), (15, 42860544), (16, 40181760), (18, 35717120), (20, 32145408), (24, 26787840), (30, 21430272), (32, 20090880), (36, 17858560), (40, 16072704), (45, 14286848), (48, 13393920), (60, 10715136), (64, 10045440), (72, 8929280), (80, 8036352), (90, 7143424), (96, 6696960), (109, 5898240), (120, 5357568), (128, 5022720), (144, 4464640), (160, 4018176), (180, 3571712), (192, 3348480), (218, 2949120), (240, 2678784), (256, 2511360), (288, 2232320), (320, 2009088), (327, 1966080), (360, 1785856), (384, 1674240), (436, 1474560), (480, 1339392), (512, 1255680), (545, 1179648), (576, 1116160), (640, 1004544), (654, 983040), (720, 892928), (768, 837120), (872, 737280), (960, 669696), (981, 655360), (1024, 627840), (1090, 589824), (1152, 558080), (1280, 502272), (1308, 491520), (1440, 446464), (1536, 418560), (1635, 393216), (1744, 368640), (1920, 334848), (1962, 327680), (2048, 313920), (2180, 294912), (2304, 279040), (2560, 251136), (2616, 245760), (2880, 223232), (3072, 209280), (3270, 196608), (3488, 184320), (3840, 167424), (3924, 163840), (4096, 156960), (4360, 147456), (4608, 139520), (4905, 131072), (5120, 125568), (5232, 122880), (5760, 111616), (6144, 104640), (6540, 98304), (6976, 92160), (7680, 83712), (7848, 81920), (8192, 78480), (8720, 73728), (9216, 69760), (9810, 65536), (10240, 62784), (10464, 61440), (11520, 55808), (12288, 52320), (13080, 49152), (13952, 46080), (15360, 41856), (15696, 40960), (16384, 39240), (17440, 36864), (18432, 34880), (19620, 32768), (20480, 31392), (20928, 30720), (23040, 27904), (24576, 26160)]