1821651520

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{241}}^1$

素因数の和:373

約数の個数: 224

約数和(自身を含む): 4956779520

約数和(自身を除く): 3135128000

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 32, 40, 46, 52, 64, 65, 79, 80, 92, 104, 115, 130, 158, 160, 184, 208, 230, 241, 260, 299, 316, 320, 368, 395, 416, 460, 482, 520, 598, 632, 736, 790, 832, 920, 964, 1027, 1040, 1196, 1205, 1264, 1472, 1495, 1580, 1817, 1840, 1928, 2054, 2080, 2392, 2410, 2528, 2990, 3133, 3160, 3634, 3680, 3856, 4108, 4160, 4784, 4820, 5056, 5135, 5543, 5980, 6266, 6320, 7268, 7360, 7712, 8216, 9085, 9568, 9640, 10270, 11086, 11960, 12532, 12640, 14536, 15424, 15665, 16432, 18170, 19039, 19136, 19280, 20540, 22172, 23621, 23920, 25064, 25280, 27715, 29072, 31330, 32864, 36340, 38078, 38560, 41080, 44344, 47242, 47840, 50128, 55430, 58144, 62660, 65728, 72059, 72680, 76156, 77120, 82160, 88688, 94484, 95195, 95680, 100256, 110860, 116288, 118105, 125320, 144118, 145360, 152312, 164320, 177376, 188968, 190390, 200512, 221720, 236210, 247507, 250640, 288236, 290720, 304624, 328640, 354752, 360295, 377936, 380780, 437897, 443440, 472420, 495014, 501280, 576472, 581440, 609248, 720590, 755872, 761560, 875794, 886880, 944840, 990028, 1002560, 1152944, 1218496, 1237535, 1441180, 1511744, 1523120, 1751588, 1773760, 1889680, 1980056, 2189485, 2305888, 2475070, 2882360, 3046240, 3503176, 3779360, 3960112, 4378970, 4611776, 4950140, 5692661, 5764720, 6092480, 7006352, 7558720, 7920224, 8757940, 9900280, 11385322, 11529440, 14012704, 15840448, 17515880, 19800560, 22770644, 23058880, 28025408, 28463305, 35031760, 39601120, 45541288, 56926610, 70063520, 79202240, 91082576, 113853220, 140127040, 182165152, 227706440, 364330304, 455412880, 910825760, 1821651520]

約数ペア:

[(1, 1821651520), (2, 910825760), (4, 455412880), (5, 364330304), (8, 227706440), (10, 182165152), (13, 140127040), (16, 113853220), (20, 91082576), (23, 79202240), (26, 70063520), (32, 56926610), (40, 45541288), (46, 39601120), (52, 35031760), (64, 28463305), (65, 28025408), (79, 23058880), (80, 22770644), (92, 19800560), (104, 17515880), (115, 15840448), (130, 14012704), (158, 11529440), (160, 11385322), (184, 9900280), (208, 8757940), (230, 7920224), (241, 7558720), (260, 7006352), (299, 6092480), (316, 5764720), (320, 5692661), (368, 4950140), (395, 4611776), (416, 4378970), (460, 3960112), (482, 3779360), (520, 3503176), (598, 3046240), (632, 2882360), (736, 2475070), (790, 2305888), (832, 2189485), (920, 1980056), (964, 1889680), (1027, 1773760), (1040, 1751588), (1196, 1523120), (1205, 1511744), (1264, 1441180), (1472, 1237535), (1495, 1218496), (1580, 1152944), (1817, 1002560), (1840, 990028), (1928, 944840), (2054, 886880), (2080, 875794), (2392, 761560), (2410, 755872), (2528, 720590), (2990, 609248), (3133, 581440), (3160, 576472), (3634, 501280), (3680, 495014), (3856, 472420), (4108, 443440), (4160, 437897), (4784, 380780), (4820, 377936), (5056, 360295), (5135, 354752), (5543, 328640), (5980, 304624), (6266, 290720), (6320, 288236), (7268, 250640), (7360, 247507), (7712, 236210), (8216, 221720), (9085, 200512), (9568, 190390), (9640, 188968), (10270, 177376), (11086, 164320), (11960, 152312), (12532, 145360), (12640, 144118), (14536, 125320), (15424, 118105), (15665, 116288), (16432, 110860), (18170, 100256), (19039, 95680), (19136, 95195), (19280, 94484), (20540, 88688), (22172, 82160), (23621, 77120), (23920, 76156), (25064, 72680), (25280, 72059), (27715, 65728), (29072, 62660), (31330, 58144), (32864, 55430), (36340, 50128), (38078, 47840), (38560, 47242), (41080, 44344)]