19878321456

素因数分解:

$2^4\times 3^5\times 7^1\times {\mathrm{31}}^1\times {\mathrm{23561}}^1$

素因数の和:23622

約数の個数: 240

約数和(自身を含む): 68063643648

約数和(自身を除く): 48185322192

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 31, 36, 42, 48, 54, 56, 62, 63, 72, 81, 84, 93, 108, 112, 124, 126, 144, 162, 168, 186, 189, 216, 217, 243, 248, 252, 279, 324, 336, 372, 378, 432, 434, 486, 496, 504, 558, 567, 648, 651, 744, 756, 837, 868, 972, 1008, 1116, 1134, 1296, 1302, 1488, 1512, 1674, 1701, 1736, 1944, 1953, 2232, 2268, 2511, 2604, 3024, 3348, 3402, 3472, 3888, 3906, 4464, 4536, 5022, 5208, 5859, 6696, 6804, 7533, 7812, 9072, 10044, 10416, 11718, 13392, 13608, 15066, 15624, 17577, 20088, 23436, 23561, 27216, 30132, 31248, 35154, 40176, 46872, 47122, 52731, 60264, 70308, 70683, 93744, 94244, 105462, 120528, 140616, 141366, 164927, 188488, 210924, 212049, 281232, 282732, 329854, 376976, 421848, 424098, 494781, 565464, 636147, 659708, 730391, 843696, 848196, 989562, 1130928, 1272294, 1319416, 1460782, 1484343, 1696392, 1908441, 1979124, 2191173, 2544588, 2638832, 2921564, 2968686, 3392784, 3816882, 3958248, 4382346, 4453029, 5089176, 5112737, 5725323, 5843128, 5937372, 6573519, 7633764, 7916496, 8764692, 8906058, 10178352, 10225474, 11450646, 11686256, 11874744, 13147038, 13359087, 15267528, 15338211, 17529384, 17812116, 19720557, 20450948, 22901292, 23749488, 26294076, 26718174, 30535056, 30676422, 35058768, 35624232, 39441114, 40077261, 40901896, 45802584, 46014633, 52588152, 53436348, 59161671, 61352844, 71248464, 78882228, 80154522, 81803792, 91605168, 92029266, 105176304, 106872696, 118323342, 122705688, 138043899, 157764456, 160309044, 177485013, 184058532, 213745392, 236646684, 245411376, 276087798, 315528912, 320618088, 354970026, 368117064, 414131697, 473293368, 552175596, 641236176, 709940052, 736234128, 828263394, 946586736, 1104351192, 1242395091, 1419880104, 1656526788, 2208702384, 2484790182, 2839760208, 3313053576, 4969580364, 6626107152, 9939160728, 19878321456]

約数ペア:

[(1, 19878321456), (2, 9939160728), (3, 6626107152), (4, 4969580364), (6, 3313053576), (7, 2839760208), (8, 2484790182), (9, 2208702384), (12, 1656526788), (14, 1419880104), (16, 1242395091), (18, 1104351192), (21, 946586736), (24, 828263394), (27, 736234128), (28, 709940052), (31, 641236176), (36, 552175596), (42, 473293368), (48, 414131697), (54, 368117064), (56, 354970026), (62, 320618088), (63, 315528912), (72, 276087798), (81, 245411376), (84, 236646684), (93, 213745392), (108, 184058532), (112, 177485013), (124, 160309044), (126, 157764456), (144, 138043899), (162, 122705688), (168, 118323342), (186, 106872696), (189, 105176304), (216, 92029266), (217, 91605168), (243, 81803792), (248, 80154522), (252, 78882228), (279, 71248464), (324, 61352844), (336, 59161671), (372, 53436348), (378, 52588152), (432, 46014633), (434, 45802584), (486, 40901896), (496, 40077261), (504, 39441114), (558, 35624232), (567, 35058768), (648, 30676422), (651, 30535056), (744, 26718174), (756, 26294076), (837, 23749488), (868, 22901292), (972, 20450948), (1008, 19720557), (1116, 17812116), (1134, 17529384), (1296, 15338211), (1302, 15267528), (1488, 13359087), (1512, 13147038), (1674, 11874744), (1701, 11686256), (1736, 11450646), (1944, 10225474), (1953, 10178352), (2232, 8906058), (2268, 8764692), (2511, 7916496), (2604, 7633764), (3024, 6573519), (3348, 5937372), (3402, 5843128), (3472, 5725323), (3888, 5112737), (3906, 5089176), (4464, 4453029), (4536, 4382346), (5022, 3958248), (5208, 3816882), (5859, 3392784), (6696, 2968686), (6804, 2921564), (7533, 2638832), (7812, 2544588), (9072, 2191173), (10044, 1979124), (10416, 1908441), (11718, 1696392), (13392, 1484343), (13608, 1460782), (15066, 1319416), (15624, 1272294), (17577, 1130928), (20088, 989562), (23436, 848196), (23561, 843696), (27216, 730391), (30132, 659708), (31248, 636147), (35154, 565464), (40176, 494781), (46872, 424098), (47122, 421848), (52731, 376976), (60264, 329854), (70308, 282732), (70683, 281232), (93744, 212049), (94244, 210924), (105462, 188488), (120528, 164927), (140616, 141366)]