638638560

素因数分解:

$2^5\times 3^3\times 5^1\times 7^3\times {\mathrm{431}}^1$

素因数の和:476

約数の個数: 384

約数和(自身を含む): 2612736000

約数和(自身を除く): 1974097440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 49, 54, 56, 60, 63, 70, 72, 80, 84, 90, 96, 98, 105, 108, 112, 120, 126, 135, 140, 144, 147, 160, 168, 180, 189, 196, 210, 216, 224, 240, 245, 252, 270, 280, 288, 294, 315, 336, 343, 360, 378, 392, 420, 431, 432, 441, 480, 490, 504, 540, 560, 588, 630, 672, 686, 720, 735, 756, 784, 840, 862, 864, 882, 945, 980, 1008, 1029, 1080, 1120, 1176, 1260, 1293, 1323, 1372, 1440, 1470, 1512, 1568, 1680, 1715, 1724, 1764, 1890, 1960, 2016, 2058, 2155, 2160, 2205, 2352, 2520, 2586, 2646, 2744, 2940, 3017, 3024, 3087, 3360, 3430, 3448, 3528, 3780, 3879, 3920, 4116, 4310, 4320, 4410, 4704, 5040, 5145, 5172, 5292, 5488, 5880, 6034, 6048, 6174, 6465, 6615, 6860, 6896, 7056, 7560, 7758, 7840, 8232, 8620, 8820, 9051, 9261, 10080, 10290, 10344, 10584, 10976, 11637, 11760, 12068, 12348, 12930, 13230, 13720, 13792, 14112, 15085, 15120, 15435, 15516, 16464, 17240, 17640, 18102, 18522, 19395, 20580, 20688, 21119, 21168, 23274, 23520, 24136, 24696, 25860, 26460, 27153, 27440, 30170, 30240, 30870, 31032, 32928, 34480, 35280, 36204, 37044, 38790, 41160, 41376, 42238, 42336, 45255, 46305, 46548, 48272, 49392, 51720, 52920, 54306, 54880, 58185, 60340, 61740, 62064, 63357, 68960, 70560, 72408, 74088, 77580, 81459, 82320, 84476, 90510, 92610, 93096, 96544, 98784, 103440, 105595, 105840, 108612, 116370, 120680, 123480, 124128, 126714, 135765, 144816, 147833, 148176, 155160, 162918, 164640, 168952, 181020, 185220, 186192, 190071, 206880, 211190, 211680, 217224, 232740, 241360, 246960, 253428, 271530, 289632, 295666, 296352, 310320, 316785, 325836, 337904, 362040, 370440, 372384, 380142, 407295, 422380, 434448, 443499, 465480, 482720, 493920, 506856, 543060, 570213, 591332, 620640, 633570, 651672, 675808, 724080, 739165, 740880, 760284, 814590, 844760, 868896, 886998, 930960, 950355, 1013712, 1086120, 1140426, 1182664, 1267140, 1303344, 1330497, 1448160, 1478330, 1481760, 1520568, 1629180, 1689520, 1773996, 1861920, 1900710, 2027424, 2172240, 2217495, 2280852, 2365328, 2534280, 2606688, 2660994, 2851065, 2956660, 3041136, 3258360, 3379040, 3547992, 3801420, 3991491, 4344480, 4434990, 4561704, 4730656, 5068560, 5321988, 5702130, 5913320, 6082272, 6516720, 6652485, 7095984, 7602840, 7982982, 8869980, 9123408, 10137120, 10643976, 11404260, 11826640, 13033440, 13304970, 14191968, 15205680, 15965964, 17739960, 18246816, 19957455, 21287952, 22808520, 23653280, 26609940, 30411360, 31931928, 35479920, 39914910, 42575904, 45617040, 53219880, 63863856, 70959840, 79829820, 91234080, 106439760, 127727712, 159659640, 212879520, 319319280, 638638560]

約数ペア:

[(1, 638638560), (2, 319319280), (3, 212879520), (4, 159659640), (5, 127727712), (6, 106439760), (7, 91234080), (8, 79829820), (9, 70959840), (10, 63863856), (12, 53219880), (14, 45617040), (15, 42575904), (16, 39914910), (18, 35479920), (20, 31931928), (21, 30411360), (24, 26609940), (27, 23653280), (28, 22808520), (30, 21287952), (32, 19957455), (35, 18246816), (36, 17739960), (40, 15965964), (42, 15205680), (45, 14191968), (48, 13304970), (49, 13033440), (54, 11826640), (56, 11404260), (60, 10643976), (63, 10137120), (70, 9123408), (72, 8869980), (80, 7982982), (84, 7602840), (90, 7095984), (96, 6652485), (98, 6516720), (105, 6082272), (108, 5913320), (112, 5702130), (120, 5321988), (126, 5068560), (135, 4730656), (140, 4561704), (144, 4434990), (147, 4344480), (160, 3991491), (168, 3801420), (180, 3547992), (189, 3379040), (196, 3258360), (210, 3041136), (216, 2956660), (224, 2851065), (240, 2660994), (245, 2606688), (252, 2534280), (270, 2365328), (280, 2280852), (288, 2217495), (294, 2172240), (315, 2027424), (336, 1900710), (343, 1861920), (360, 1773996), (378, 1689520), (392, 1629180), (420, 1520568), (431, 1481760), (432, 1478330), (441, 1448160), (480, 1330497), (490, 1303344), (504, 1267140), (540, 1182664), (560, 1140426), (588, 1086120), (630, 1013712), (672, 950355), (686, 930960), (720, 886998), (735, 868896), (756, 844760), (784, 814590), (840, 760284), (862, 740880), (864, 739165), (882, 724080), (945, 675808), (980, 651672), (1008, 633570), (1029, 620640), (1080, 591332), (1120, 570213), (1176, 543060), (1260, 506856), (1293, 493920), (1323, 482720), (1372, 465480), (1440, 443499), (1470, 434448), (1512, 422380), (1568, 407295), (1680, 380142), (1715, 372384), (1724, 370440), (1764, 362040), (1890, 337904), (1960, 325836), (2016, 316785), (2058, 310320), (2155, 296352), (2160, 295666), (2205, 289632), (2352, 271530), (2520, 253428), (2586, 246960), (2646, 241360), (2744, 232740), (2940, 217224), (3017, 211680), (3024, 211190), (3087, 206880), (3360, 190071), (3430, 186192), (3448, 185220), (3528, 181020), (3780, 168952), (3879, 164640), (3920, 162918), (4116, 155160), (4310, 148176), (4320, 147833), (4410, 144816), (4704, 135765), (5040, 126714), (5145, 124128), (5172, 123480), (5292, 120680), (5488, 116370), (5880, 108612), (6034, 105840), (6048, 105595), (6174, 103440), (6465, 98784), (6615, 96544), (6860, 93096), (6896, 92610), (7056, 90510), (7560, 84476), (7758, 82320), (7840, 81459), (8232, 77580), (8620, 74088), (8820, 72408), (9051, 70560), (9261, 68960), (10080, 63357), (10290, 62064), (10344, 61740), (10584, 60340), (10976, 58185), (11637, 54880), (11760, 54306), (12068, 52920), (12348, 51720), (12930, 49392), (13230, 48272), (13720, 46548), (13792, 46305), (14112, 45255), (15085, 42336), (15120, 42238), (15435, 41376), (15516, 41160), (16464, 38790), (17240, 37044), (17640, 36204), (18102, 35280), (18522, 34480), (19395, 32928), (20580, 31032), (20688, 30870), (21119, 30240), (21168, 30170), (23274, 27440), (23520, 27153), (24136, 26460), (24696, 25860)]