20781675152

素因数分解:

$2^4\times 7^1\times {\mathrm{29}}^2\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:266

約数の個数: 240

約数和(自身を含む): 50234820480

約数和(自身を除く): 29453145328

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 37, 56, 58, 67, 74, 89, 112, 116, 134, 148, 178, 203, 232, 259, 268, 296, 356, 406, 464, 469, 518, 536, 592, 623, 712, 812, 841, 938, 1036, 1072, 1073, 1246, 1424, 1624, 1682, 1876, 1943, 2072, 2146, 2479, 2492, 2581, 3248, 3293, 3364, 3752, 3886, 4144, 4292, 4958, 4984, 5162, 5887, 5963, 6586, 6728, 7504, 7511, 7772, 8584, 9916, 9968, 10324, 11774, 11926, 13172, 13456, 13601, 15022, 15544, 17168, 17353, 18067, 19832, 20648, 23051, 23548, 23852, 26344, 27202, 30044, 31088, 31117, 34706, 36134, 39664, 41296, 41741, 46102, 47096, 47704, 52688, 54404, 56347, 60088, 62234, 69412, 71891, 72268, 74849, 83482, 92204, 94192, 95408, 95497, 108808, 112694, 120176, 124468, 138824, 143782, 144536, 149698, 166964, 172927, 184408, 190994, 217616, 217819, 220631, 225388, 248936, 277648, 287564, 289072, 299396, 333928, 345854, 368816, 381988, 394429, 435638, 441262, 450776, 497872, 503237, 523943, 575128, 598792, 667856, 668479, 691708, 763976, 788858, 871276, 882524, 901552, 1006474, 1047886, 1150256, 1197584, 1210489, 1336958, 1383416, 1527952, 1544417, 1577716, 1742552, 1765048, 2012948, 2084839, 2095772, 2420978, 2673916, 2766832, 2769413, 3088834, 3155432, 3485104, 3530096, 4025896, 4169678, 4191544, 4841956, 5014883, 5347832, 5538826, 6177668, 6310864, 6398299, 8051792, 8339356, 8383088, 9683912, 10029766, 10695664, 11077652, 12355336, 12796598, 14593873, 16678712, 19367824, 19385891, 20059532, 22155304, 24710672, 25593196, 29187746, 33357424, 35104181, 38771782, 40119064, 44310608, 44788093, 51186392, 58375492, 70208362, 77543564, 80238128, 89576186, 102372784, 116750984, 140416724, 155087128, 179152372, 185550671, 233501968, 280833448, 310174256, 358304744, 371101342, 561666896, 716609488, 742202684, 1298854697, 1484405368, 2597709394, 2968810736, 5195418788, 10390837576, 20781675152]

約数ペア:

[(1, 20781675152), (2, 10390837576), (4, 5195418788), (7, 2968810736), (8, 2597709394), (14, 1484405368), (16, 1298854697), (28, 742202684), (29, 716609488), (37, 561666896), (56, 371101342), (58, 358304744), (67, 310174256), (74, 280833448), (89, 233501968), (112, 185550671), (116, 179152372), (134, 155087128), (148, 140416724), (178, 116750984), (203, 102372784), (232, 89576186), (259, 80238128), (268, 77543564), (296, 70208362), (356, 58375492), (406, 51186392), (464, 44788093), (469, 44310608), (518, 40119064), (536, 38771782), (592, 35104181), (623, 33357424), (712, 29187746), (812, 25593196), (841, 24710672), (938, 22155304), (1036, 20059532), (1072, 19385891), (1073, 19367824), (1246, 16678712), (1424, 14593873), (1624, 12796598), (1682, 12355336), (1876, 11077652), (1943, 10695664), (2072, 10029766), (2146, 9683912), (2479, 8383088), (2492, 8339356), (2581, 8051792), (3248, 6398299), (3293, 6310864), (3364, 6177668), (3752, 5538826), (3886, 5347832), (4144, 5014883), (4292, 4841956), (4958, 4191544), (4984, 4169678), (5162, 4025896), (5887, 3530096), (5963, 3485104), (6586, 3155432), (6728, 3088834), (7504, 2769413), (7511, 2766832), (7772, 2673916), (8584, 2420978), (9916, 2095772), (9968, 2084839), (10324, 2012948), (11774, 1765048), (11926, 1742552), (13172, 1577716), (13456, 1544417), (13601, 1527952), (15022, 1383416), (15544, 1336958), (17168, 1210489), (17353, 1197584), (18067, 1150256), (19832, 1047886), (20648, 1006474), (23051, 901552), (23548, 882524), (23852, 871276), (26344, 788858), (27202, 763976), (30044, 691708), (31088, 668479), (31117, 667856), (34706, 598792), (36134, 575128), (39664, 523943), (41296, 503237), (41741, 497872), (46102, 450776), (47096, 441262), (47704, 435638), (52688, 394429), (54404, 381988), (56347, 368816), (60088, 345854), (62234, 333928), (69412, 299396), (71891, 289072), (72268, 287564), (74849, 277648), (83482, 248936), (92204, 225388), (94192, 220631), (95408, 217819), (95497, 217616), (108808, 190994), (112694, 184408), (120176, 172927), (124468, 166964), (138824, 149698), (143782, 144536)]