2181132720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{7517}}^1$

素因数の和:7580

約数の個数: 240

約数和(自身を含む): 8143978752

約数和(自身を除く): 5962846032

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 31, 36, 39, 40, 45, 48, 52, 60, 62, 65, 72, 78, 80, 90, 93, 104, 117, 120, 124, 130, 144, 155, 156, 180, 186, 195, 208, 234, 240, 248, 260, 279, 310, 312, 360, 372, 390, 403, 465, 468, 496, 520, 558, 585, 620, 624, 720, 744, 780, 806, 930, 936, 1040, 1116, 1170, 1209, 1240, 1395, 1488, 1560, 1612, 1860, 1872, 2015, 2232, 2340, 2418, 2480, 2790, 3120, 3224, 3627, 3720, 4030, 4464, 4680, 4836, 5580, 6045, 6448, 7254, 7440, 7517, 8060, 9360, 9672, 11160, 12090, 14508, 15034, 16120, 18135, 19344, 22320, 22551, 24180, 29016, 30068, 32240, 36270, 37585, 45102, 48360, 58032, 60136, 67653, 72540, 75170, 90204, 96720, 97721, 112755, 120272, 135306, 145080, 150340, 180408, 195442, 225510, 233027, 270612, 290160, 293163, 300680, 338265, 360816, 390884, 451020, 466054, 488605, 541224, 586326, 601360, 676530, 699081, 781768, 879489, 902040, 932108, 977210, 1082448, 1165135, 1172652, 1353060, 1398162, 1465815, 1563536, 1758978, 1804080, 1864216, 1954420, 2097243, 2330270, 2345304, 2706120, 2796324, 2931630, 3029351, 3495405, 3517956, 3728432, 3908840, 4194486, 4397445, 4660540, 4690608, 5412240, 5592648, 5863260, 6058702, 6990810, 7035912, 7817680, 8388972, 8794890, 9088053, 9321080, 10486215, 11185296, 11726520, 12117404, 13981620, 14071824, 15146755, 16777944, 17589780, 18176106, 18642160, 20972430, 23453040, 24234808, 27264159, 27963240, 30293510, 33555888, 35179560, 36352212, 41944860, 45440265, 48469616, 54528318, 55926480, 60587020, 70359120, 72704424, 83889720, 90880530, 109056636, 121174040, 136320795, 145408848, 167779440, 181761060, 218113272, 242348080, 272641590, 363522120, 436226544, 545283180, 727044240, 1090566360, 2181132720]

約数ペア:

[(1, 2181132720), (2, 1090566360), (3, 727044240), (4, 545283180), (5, 436226544), (6, 363522120), (8, 272641590), (9, 242348080), (10, 218113272), (12, 181761060), (13, 167779440), (15, 145408848), (16, 136320795), (18, 121174040), (20, 109056636), (24, 90880530), (26, 83889720), (30, 72704424), (31, 70359120), (36, 60587020), (39, 55926480), (40, 54528318), (45, 48469616), (48, 45440265), (52, 41944860), (60, 36352212), (62, 35179560), (65, 33555888), (72, 30293510), (78, 27963240), (80, 27264159), (90, 24234808), (93, 23453040), (104, 20972430), (117, 18642160), (120, 18176106), (124, 17589780), (130, 16777944), (144, 15146755), (155, 14071824), (156, 13981620), (180, 12117404), (186, 11726520), (195, 11185296), (208, 10486215), (234, 9321080), (240, 9088053), (248, 8794890), (260, 8388972), (279, 7817680), (310, 7035912), (312, 6990810), (360, 6058702), (372, 5863260), (390, 5592648), (403, 5412240), (465, 4690608), (468, 4660540), (496, 4397445), (520, 4194486), (558, 3908840), (585, 3728432), (620, 3517956), (624, 3495405), (720, 3029351), (744, 2931630), (780, 2796324), (806, 2706120), (930, 2345304), (936, 2330270), (1040, 2097243), (1116, 1954420), (1170, 1864216), (1209, 1804080), (1240, 1758978), (1395, 1563536), (1488, 1465815), (1560, 1398162), (1612, 1353060), (1860, 1172652), (1872, 1165135), (2015, 1082448), (2232, 977210), (2340, 932108), (2418, 902040), (2480, 879489), (2790, 781768), (3120, 699081), (3224, 676530), (3627, 601360), (3720, 586326), (4030, 541224), (4464, 488605), (4680, 466054), (4836, 451020), (5580, 390884), (6045, 360816), (6448, 338265), (7254, 300680), (7440, 293163), (7517, 290160), (8060, 270612), (9360, 233027), (9672, 225510), (11160, 195442), (12090, 180408), (14508, 150340), (15034, 145080), (16120, 135306), (18135, 120272), (19344, 112755), (22320, 97721), (22551, 96720), (24180, 90204), (29016, 75170), (30068, 72540), (32240, 67653), (36270, 60136), (37585, 58032), (45102, 48360)]