1998809568

素因数分解:

$2^5\times 3^3\times 7^2\times {\mathrm{31}}^1\times {\mathrm{1523}}^1$

素因数の和:1587

約数の個数: 288

約数和(自身を含む): 7005035520

約数和(自身を除く): 5006225952

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 31, 32, 36, 42, 48, 49, 54, 56, 62, 63, 72, 84, 93, 96, 98, 108, 112, 124, 126, 144, 147, 168, 186, 189, 196, 216, 217, 224, 248, 252, 279, 288, 294, 336, 372, 378, 392, 432, 434, 441, 496, 504, 558, 588, 651, 672, 744, 756, 784, 837, 864, 868, 882, 992, 1008, 1116, 1176, 1302, 1323, 1488, 1512, 1519, 1523, 1568, 1674, 1736, 1764, 1953, 2016, 2232, 2352, 2604, 2646, 2976, 3024, 3038, 3046, 3348, 3472, 3528, 3906, 4464, 4557, 4569, 4704, 5208, 5292, 5859, 6048, 6076, 6092, 6696, 6944, 7056, 7812, 8928, 9114, 9138, 10416, 10584, 10661, 11718, 12152, 12184, 13392, 13671, 13707, 14112, 15624, 18228, 18276, 20832, 21168, 21322, 23436, 24304, 24368, 26784, 27342, 27414, 31248, 31983, 36456, 36552, 41013, 41121, 42336, 42644, 46872, 47213, 48608, 48736, 54684, 54828, 62496, 63966, 72912, 73104, 74627, 82026, 82242, 85288, 93744, 94426, 95949, 109368, 109656, 127932, 141639, 145824, 146208, 149254, 164052, 164484, 170576, 187488, 188852, 191898, 218736, 219312, 223881, 255864, 283278, 287847, 298508, 328104, 328968, 330491, 341152, 377704, 383796, 424917, 437472, 438624, 447762, 511728, 566556, 575694, 597016, 656208, 657936, 660982, 671643, 755408, 767592, 849834, 895524, 991473, 1023456, 1133112, 1151388, 1194032, 1274751, 1312416, 1315872, 1321964, 1343286, 1510816, 1535184, 1699668, 1791048, 1982946, 2014929, 2266224, 2302776, 2313437, 2388064, 2549502, 2643928, 2686572, 2974419, 3070368, 3399336, 3582096, 3965892, 4029858, 4532448, 4605552, 4626874, 5099004, 5287856, 5373144, 5948838, 6798672, 6940311, 7164192, 7931784, 8059716, 8923257, 9211104, 9253748, 10198008, 10575712, 10746288, 11897676, 13597344, 13880622, 15863568, 16119432, 17846514, 18507496, 20396016, 20820933, 21492576, 23795352, 27761244, 31727136, 32238864, 35693028, 37014992, 40792032, 41641866, 47590704, 55522488, 62462799, 64477728, 71386056, 74029984, 83283732, 95181408, 111044976, 124925598, 142772112, 166567464, 222089952, 249851196, 285544224, 333134928, 499702392, 666269856, 999404784, 1998809568]

約数ペア:

[(1, 1998809568), (2, 999404784), (3, 666269856), (4, 499702392), (6, 333134928), (7, 285544224), (8, 249851196), (9, 222089952), (12, 166567464), (14, 142772112), (16, 124925598), (18, 111044976), (21, 95181408), (24, 83283732), (27, 74029984), (28, 71386056), (31, 64477728), (32, 62462799), (36, 55522488), (42, 47590704), (48, 41641866), (49, 40792032), (54, 37014992), (56, 35693028), (62, 32238864), (63, 31727136), (72, 27761244), (84, 23795352), (93, 21492576), (96, 20820933), (98, 20396016), (108, 18507496), (112, 17846514), (124, 16119432), (126, 15863568), (144, 13880622), (147, 13597344), (168, 11897676), (186, 10746288), (189, 10575712), (196, 10198008), (216, 9253748), (217, 9211104), (224, 8923257), (248, 8059716), (252, 7931784), (279, 7164192), (288, 6940311), (294, 6798672), (336, 5948838), (372, 5373144), (378, 5287856), (392, 5099004), (432, 4626874), (434, 4605552), (441, 4532448), (496, 4029858), (504, 3965892), (558, 3582096), (588, 3399336), (651, 3070368), (672, 2974419), (744, 2686572), (756, 2643928), (784, 2549502), (837, 2388064), (864, 2313437), (868, 2302776), (882, 2266224), (992, 2014929), (1008, 1982946), (1116, 1791048), (1176, 1699668), (1302, 1535184), (1323, 1510816), (1488, 1343286), (1512, 1321964), (1519, 1315872), (1523, 1312416), (1568, 1274751), (1674, 1194032), (1736, 1151388), (1764, 1133112), (1953, 1023456), (2016, 991473), (2232, 895524), (2352, 849834), (2604, 767592), (2646, 755408), (2976, 671643), (3024, 660982), (3038, 657936), (3046, 656208), (3348, 597016), (3472, 575694), (3528, 566556), (3906, 511728), (4464, 447762), (4557, 438624), (4569, 437472), (4704, 424917), (5208, 383796), (5292, 377704), (5859, 341152), (6048, 330491), (6076, 328968), (6092, 328104), (6696, 298508), (6944, 287847), (7056, 283278), (7812, 255864), (8928, 223881), (9114, 219312), (9138, 218736), (10416, 191898), (10584, 188852), (10661, 187488), (11718, 170576), (12152, 164484), (12184, 164052), (13392, 149254), (13671, 146208), (13707, 145824), (14112, 141639), (15624, 127932), (18228, 109656), (18276, 109368), (20832, 95949), (21168, 94426), (21322, 93744), (23436, 85288), (24304, 82242), (24368, 82026), (26784, 74627), (27342, 73104), (27414, 72912), (31248, 63966), (31983, 62496), (36456, 54828), (36552, 54684), (41013, 48736), (41121, 48608), (42336, 47213), (42644, 46872)]