21287990880

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1137179}}^1$

素因数の和:1137213

約数の個数: 144

約数和(自身を含む): 78233435280

約数和(自身を除く): 56945444400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 96, 104, 117, 120, 130, 144, 156, 160, 180, 195, 208, 234, 240, 260, 288, 312, 360, 390, 416, 468, 480, 520, 585, 624, 720, 780, 936, 1040, 1170, 1248, 1440, 1560, 1872, 2080, 2340, 3120, 3744, 4680, 6240, 9360, 18720, 1137179, 2274358, 3411537, 4548716, 5685895, 6823074, 9097432, 10234611, 11371790, 13646148, 14783327, 17057685, 18194864, 20469222, 22743580, 27292296, 29566654, 34115370, 36389728, 40938444, 44349981, 45487160, 51173055, 54584592, 59133308, 68230740, 73916635, 81876888, 88699962, 90974320, 102346110, 109169184, 118266616, 133049943, 136461480, 147833270, 163753776, 177399924, 181948640, 204692220, 221749905, 236533232, 266099886, 272922960, 295666540, 327507552, 354799848, 409384440, 443499810, 473066464, 532199772, 545845920, 591333080, 665249715, 709599696, 818768880, 886999620, 1064399544, 1182666160, 1330499430, 1419199392, 1637537760, 1773999240, 2128799088, 2365332320, 2660998860, 3547998480, 4257598176, 5321997720, 7095996960, 10643995440, 21287990880]

約数ペア:

[(1, 21287990880), (2, 10643995440), (3, 7095996960), (4, 5321997720), (5, 4257598176), (6, 3547998480), (8, 2660998860), (9, 2365332320), (10, 2128799088), (12, 1773999240), (13, 1637537760), (15, 1419199392), (16, 1330499430), (18, 1182666160), (20, 1064399544), (24, 886999620), (26, 818768880), (30, 709599696), (32, 665249715), (36, 591333080), (39, 545845920), (40, 532199772), (45, 473066464), (48, 443499810), (52, 409384440), (60, 354799848), (65, 327507552), (72, 295666540), (78, 272922960), (80, 266099886), (90, 236533232), (96, 221749905), (104, 204692220), (117, 181948640), (120, 177399924), (130, 163753776), (144, 147833270), (156, 136461480), (160, 133049943), (180, 118266616), (195, 109169184), (208, 102346110), (234, 90974320), (240, 88699962), (260, 81876888), (288, 73916635), (312, 68230740), (360, 59133308), (390, 54584592), (416, 51173055), (468, 45487160), (480, 44349981), (520, 40938444), (585, 36389728), (624, 34115370), (720, 29566654), (780, 27292296), (936, 22743580), (1040, 20469222), (1170, 18194864), (1248, 17057685), (1440, 14783327), (1560, 13646148), (1872, 11371790), (2080, 10234611), (2340, 9097432), (3120, 6823074), (3744, 5685895), (4680, 4548716), (6240, 3411537), (9360, 2274358), (18720, 1137179)]