21846240

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1$

素因数の和:426

約数の個数: 192

約数和(自身を含む): 82555200

約数和(自身を除く): 60708960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 32, 36, 39, 40, 45, 48, 52, 54, 60, 65, 72, 78, 80, 90, 96, 104, 108, 117, 120, 130, 135, 144, 156, 160, 180, 195, 208, 216, 234, 240, 260, 270, 288, 312, 351, 360, 389, 390, 416, 432, 468, 480, 520, 540, 585, 624, 702, 720, 778, 780, 864, 936, 1040, 1080, 1167, 1170, 1248, 1404, 1440, 1556, 1560, 1755, 1872, 1945, 2080, 2160, 2334, 2340, 2808, 3112, 3120, 3501, 3510, 3744, 3890, 4320, 4668, 4680, 5057, 5616, 5835, 6224, 6240, 7002, 7020, 7780, 9336, 9360, 10114, 10503, 11232, 11670, 12448, 14004, 14040, 15171, 15560, 17505, 18672, 18720, 20228, 21006, 23340, 25285, 28008, 28080, 30342, 31120, 35010, 37344, 40456, 42012, 45513, 46680, 50570, 52515, 56016, 56160, 60684, 62240, 70020, 75855, 80912, 84024, 91026, 93360, 101140, 105030, 112032, 121368, 136539, 140040, 151710, 161824, 168048, 182052, 186720, 202280, 210060, 227565, 242736, 273078, 280080, 303420, 336096, 364104, 404560, 420120, 455130, 485472, 546156, 560160, 606840, 682695, 728208, 809120, 840240, 910260, 1092312, 1213680, 1365390, 1456416, 1680480, 1820520, 2184624, 2427360, 2730780, 3641040, 4369248, 5461560, 7282080, 10923120, 21846240]

約数ペア:

[(1, 21846240), (2, 10923120), (3, 7282080), (4, 5461560), (5, 4369248), (6, 3641040), (8, 2730780), (9, 2427360), (10, 2184624), (12, 1820520), (13, 1680480), (15, 1456416), (16, 1365390), (18, 1213680), (20, 1092312), (24, 910260), (26, 840240), (27, 809120), (30, 728208), (32, 682695), (36, 606840), (39, 560160), (40, 546156), (45, 485472), (48, 455130), (52, 420120), (54, 404560), (60, 364104), (65, 336096), (72, 303420), (78, 280080), (80, 273078), (90, 242736), (96, 227565), (104, 210060), (108, 202280), (117, 186720), (120, 182052), (130, 168048), (135, 161824), (144, 151710), (156, 140040), (160, 136539), (180, 121368), (195, 112032), (208, 105030), (216, 101140), (234, 93360), (240, 91026), (260, 84024), (270, 80912), (288, 75855), (312, 70020), (351, 62240), (360, 60684), (389, 56160), (390, 56016), (416, 52515), (432, 50570), (468, 46680), (480, 45513), (520, 42012), (540, 40456), (585, 37344), (624, 35010), (702, 31120), (720, 30342), (778, 28080), (780, 28008), (864, 25285), (936, 23340), (1040, 21006), (1080, 20228), (1167, 18720), (1170, 18672), (1248, 17505), (1404, 15560), (1440, 15171), (1556, 14040), (1560, 14004), (1755, 12448), (1872, 11670), (1945, 11232), (2080, 10503), (2160, 10114), (2334, 9360), (2340, 9336), (2808, 7780), (3112, 7020), (3120, 7002), (3501, 6240), (3510, 6224), (3744, 5835), (3890, 5616), (4320, 5057), (4668, 4680)]