20181016960

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{647}}^1$

素因数の和:865

約数の個数: 256

約数和(自身を含む): 54632309760

約数和(自身を除く): 34451292800

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 32, 40, 46, 52, 64, 65, 80, 92, 104, 115, 128, 130, 160, 163, 184, 208, 230, 260, 299, 320, 326, 368, 416, 460, 520, 598, 640, 647, 652, 736, 815, 832, 920, 1040, 1196, 1294, 1304, 1472, 1495, 1630, 1664, 1840, 2080, 2119, 2392, 2588, 2608, 2944, 2990, 3235, 3260, 3680, 3749, 4160, 4238, 4784, 5176, 5216, 5980, 6470, 6520, 7360, 7498, 8320, 8411, 8476, 9568, 10352, 10432, 10595, 11960, 12940, 13040, 14720, 14881, 14996, 16822, 16952, 18745, 19136, 20704, 20864, 21190, 23920, 25880, 26080, 29762, 29992, 33644, 33904, 37490, 38272, 41408, 42055, 42380, 47840, 48737, 51760, 52160, 59524, 59984, 67288, 67808, 74405, 74980, 82816, 84110, 84760, 95680, 97474, 103520, 104320, 105461, 119048, 119968, 134576, 135616, 148810, 149960, 168220, 169520, 191360, 193453, 194948, 207040, 210922, 238096, 239936, 243685, 269152, 271232, 297620, 299920, 336440, 339040, 386906, 389896, 414080, 421844, 476192, 479872, 487370, 527305, 538304, 595240, 599840, 672880, 678080, 773812, 779792, 843688, 952384, 967265, 974740, 1054610, 1076608, 1190480, 1199680, 1345760, 1356160, 1370993, 1547624, 1559584, 1687376, 1904768, 1934530, 1949480, 2109220, 2380960, 2399360, 2425603, 2691520, 2741986, 3095248, 3119168, 3374752, 3869060, 3898960, 4218440, 4761920, 4851206, 5383040, 5483972, 6190496, 6238336, 6749504, 6854965, 7738120, 7797920, 8436880, 9523840, 9702412, 10967944, 12128015, 12380992, 13499008, 13709930, 15476240, 15595840, 16873760, 19404824, 21935888, 24256030, 24761984, 27419860, 30952480, 31191680, 31532839, 33747520, 38809648, 43871776, 48512060, 54839720, 61904960, 63065678, 67495040, 77619296, 87743552, 97024120, 109679440, 123809920, 126131356, 155238592, 157664195, 175487104, 194048240, 219358880, 252262712, 310477184, 315328390, 388096480, 438717760, 504525424, 630656780, 776192960, 877435520, 1009050848, 1261313560, 1552385920, 2018101696, 2522627120, 4036203392, 5045254240, 10090508480, 20181016960]

約数ペア:

[(1, 20181016960), (2, 10090508480), (4, 5045254240), (5, 4036203392), (8, 2522627120), (10, 2018101696), (13, 1552385920), (16, 1261313560), (20, 1009050848), (23, 877435520), (26, 776192960), (32, 630656780), (40, 504525424), (46, 438717760), (52, 388096480), (64, 315328390), (65, 310477184), (80, 252262712), (92, 219358880), (104, 194048240), (115, 175487104), (128, 157664195), (130, 155238592), (160, 126131356), (163, 123809920), (184, 109679440), (208, 97024120), (230, 87743552), (260, 77619296), (299, 67495040), (320, 63065678), (326, 61904960), (368, 54839720), (416, 48512060), (460, 43871776), (520, 38809648), (598, 33747520), (640, 31532839), (647, 31191680), (652, 30952480), (736, 27419860), (815, 24761984), (832, 24256030), (920, 21935888), (1040, 19404824), (1196, 16873760), (1294, 15595840), (1304, 15476240), (1472, 13709930), (1495, 13499008), (1630, 12380992), (1664, 12128015), (1840, 10967944), (2080, 9702412), (2119, 9523840), (2392, 8436880), (2588, 7797920), (2608, 7738120), (2944, 6854965), (2990, 6749504), (3235, 6238336), (3260, 6190496), (3680, 5483972), (3749, 5383040), (4160, 4851206), (4238, 4761920), (4784, 4218440), (5176, 3898960), (5216, 3869060), (5980, 3374752), (6470, 3119168), (6520, 3095248), (7360, 2741986), (7498, 2691520), (8320, 2425603), (8411, 2399360), (8476, 2380960), (9568, 2109220), (10352, 1949480), (10432, 1934530), (10595, 1904768), (11960, 1687376), (12940, 1559584), (13040, 1547624), (14720, 1370993), (14881, 1356160), (14996, 1345760), (16822, 1199680), (16952, 1190480), (18745, 1076608), (19136, 1054610), (20704, 974740), (20864, 967265), (21190, 952384), (23920, 843688), (25880, 779792), (26080, 773812), (29762, 678080), (29992, 672880), (33644, 599840), (33904, 595240), (37490, 538304), (38272, 527305), (41408, 487370), (42055, 479872), (42380, 476192), (47840, 421844), (48737, 414080), (51760, 389896), (52160, 386906), (59524, 339040), (59984, 336440), (67288, 299920), (67808, 297620), (74405, 271232), (74980, 269152), (82816, 243685), (84110, 239936), (84760, 238096), (95680, 210922), (97474, 207040), (103520, 194948), (104320, 193453), (105461, 191360), (119048, 169520), (119968, 168220), (134576, 149960), (135616, 148810)]