689388840

素因数分解:

$2^3\times 3^3\times 5^1\times 7^3\times {\mathrm{1861}}^1$

素因数の和:1902

約数の個数: 256

約数和(自身を含む): 2681280000

約数和(自身を除く): 1991891160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 49, 54, 56, 60, 63, 70, 72, 84, 90, 98, 105, 108, 120, 126, 135, 140, 147, 168, 180, 189, 196, 210, 216, 245, 252, 270, 280, 294, 315, 343, 360, 378, 392, 420, 441, 490, 504, 540, 588, 630, 686, 735, 756, 840, 882, 945, 980, 1029, 1080, 1176, 1260, 1323, 1372, 1470, 1512, 1715, 1764, 1861, 1890, 1960, 2058, 2205, 2520, 2646, 2744, 2940, 3087, 3430, 3528, 3722, 3780, 4116, 4410, 5145, 5292, 5583, 5880, 6174, 6615, 6860, 7444, 7560, 8232, 8820, 9261, 9305, 10290, 10584, 11166, 12348, 13027, 13230, 13720, 14888, 15435, 16749, 17640, 18522, 18610, 20580, 22332, 24696, 26054, 26460, 27915, 30870, 33498, 37044, 37220, 39081, 41160, 44664, 46305, 50247, 52108, 52920, 55830, 61740, 65135, 66996, 74088, 74440, 78162, 83745, 91189, 92610, 100494, 104216, 111660, 117243, 123480, 130270, 133992, 156324, 167490, 182378, 185220, 195405, 200988, 223320, 234486, 251235, 260540, 273567, 312648, 334980, 351729, 364756, 370440, 390810, 401976, 455945, 468972, 502470, 521080, 547134, 586215, 638323, 669960, 703458, 729512, 781620, 820701, 911890, 937944, 1004940, 1094268, 1172430, 1276646, 1367835, 1406916, 1563240, 1641402, 1758645, 1823780, 1914969, 2009880, 2188536, 2344860, 2462103, 2553292, 2735670, 2813832, 3191615, 3282804, 3517290, 3647560, 3829938, 4103505, 4689720, 4924206, 5106584, 5471340, 5744907, 6383230, 6565608, 7034580, 7659876, 8207010, 9574845, 9848412, 10942680, 11489814, 12310515, 12766460, 14069160, 15319752, 16414020, 17234721, 19149690, 19696824, 22979628, 24621030, 25532920, 28724535, 32828040, 34469442, 38299380, 45959256, 49242060, 57449070, 68938884, 76598760, 86173605, 98484120, 114898140, 137877768, 172347210, 229796280, 344694420, 689388840]

約数ペア:

[(1, 689388840), (2, 344694420), (3, 229796280), (4, 172347210), (5, 137877768), (6, 114898140), (7, 98484120), (8, 86173605), (9, 76598760), (10, 68938884), (12, 57449070), (14, 49242060), (15, 45959256), (18, 38299380), (20, 34469442), (21, 32828040), (24, 28724535), (27, 25532920), (28, 24621030), (30, 22979628), (35, 19696824), (36, 19149690), (40, 17234721), (42, 16414020), (45, 15319752), (49, 14069160), (54, 12766460), (56, 12310515), (60, 11489814), (63, 10942680), (70, 9848412), (72, 9574845), (84, 8207010), (90, 7659876), (98, 7034580), (105, 6565608), (108, 6383230), (120, 5744907), (126, 5471340), (135, 5106584), (140, 4924206), (147, 4689720), (168, 4103505), (180, 3829938), (189, 3647560), (196, 3517290), (210, 3282804), (216, 3191615), (245, 2813832), (252, 2735670), (270, 2553292), (280, 2462103), (294, 2344860), (315, 2188536), (343, 2009880), (360, 1914969), (378, 1823780), (392, 1758645), (420, 1641402), (441, 1563240), (490, 1406916), (504, 1367835), (540, 1276646), (588, 1172430), (630, 1094268), (686, 1004940), (735, 937944), (756, 911890), (840, 820701), (882, 781620), (945, 729512), (980, 703458), (1029, 669960), (1080, 638323), (1176, 586215), (1260, 547134), (1323, 521080), (1372, 502470), (1470, 468972), (1512, 455945), (1715, 401976), (1764, 390810), (1861, 370440), (1890, 364756), (1960, 351729), (2058, 334980), (2205, 312648), (2520, 273567), (2646, 260540), (2744, 251235), (2940, 234486), (3087, 223320), (3430, 200988), (3528, 195405), (3722, 185220), (3780, 182378), (4116, 167490), (4410, 156324), (5145, 133992), (5292, 130270), (5583, 123480), (5880, 117243), (6174, 111660), (6615, 104216), (6860, 100494), (7444, 92610), (7560, 91189), (8232, 83745), (8820, 78162), (9261, 74440), (9305, 74088), (10290, 66996), (10584, 65135), (11166, 61740), (12348, 55830), (13027, 52920), (13230, 52108), (13720, 50247), (14888, 46305), (15435, 44664), (16749, 41160), (17640, 39081), (18522, 37220), (18610, 37044), (20580, 33498), (22332, 30870), (24696, 27915), (26054, 26460)]