551640908

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{83}}^1$

素因数の和:188

約数の個数: 144

約数和(自身を含む): 1307900160

約数和(自身を除く): 756259252

約数列:

[1, 2, 4, 7, 13, 14, 19, 26, 28, 31, 38, 52, 62, 76, 83, 91, 124, 133, 166, 182, 217, 247, 266, 332, 364, 403, 434, 494, 532, 581, 589, 806, 868, 961, 988, 1079, 1162, 1178, 1577, 1612, 1729, 1922, 2158, 2324, 2356, 2573, 2821, 3154, 3458, 3844, 4123, 4316, 5146, 5642, 6308, 6727, 6916, 7553, 7657, 8246, 10292, 11039, 11284, 12493, 13454, 15106, 15314, 16492, 18011, 18259, 20501, 22078, 24986, 26908, 30212, 30628, 33449, 36022, 36518, 41002, 44156, 48887, 49972, 53599, 66898, 72044, 73036, 79763, 82004, 87451, 97774, 107198, 127813, 133796, 143507, 159526, 174902, 195548, 214396, 234143, 237367, 255626, 287014, 319052, 342209, 349804, 468286, 474734, 511252, 558341, 574028, 635531, 684418, 936572, 949468, 1036919, 1116682, 1271062, 1368836, 1515497, 1661569, 2073838, 2233364, 2542124, 3030994, 3323138, 4147676, 4448717, 6061988, 6646276, 7258433, 8897434, 10608479, 14516866, 17794868, 19701461, 21216958, 29033732, 39402922, 42433916, 78805844, 137910227, 275820454, 551640908]

約数ペア:

[(1, 551640908), (2, 275820454), (4, 137910227), (7, 78805844), (13, 42433916), (14, 39402922), (19, 29033732), (26, 21216958), (28, 19701461), (31, 17794868), (38, 14516866), (52, 10608479), (62, 8897434), (76, 7258433), (83, 6646276), (91, 6061988), (124, 4448717), (133, 4147676), (166, 3323138), (182, 3030994), (217, 2542124), (247, 2233364), (266, 2073838), (332, 1661569), (364, 1515497), (403, 1368836), (434, 1271062), (494, 1116682), (532, 1036919), (581, 949468), (589, 936572), (806, 684418), (868, 635531), (961, 574028), (988, 558341), (1079, 511252), (1162, 474734), (1178, 468286), (1577, 349804), (1612, 342209), (1729, 319052), (1922, 287014), (2158, 255626), (2324, 237367), (2356, 234143), (2573, 214396), (2821, 195548), (3154, 174902), (3458, 159526), (3844, 143507), (4123, 133796), (4316, 127813), (5146, 107198), (5642, 97774), (6308, 87451), (6727, 82004), (6916, 79763), (7553, 73036), (7657, 72044), (8246, 66898), (10292, 53599), (11039, 49972), (11284, 48887), (12493, 44156), (13454, 41002), (15106, 36518), (15314, 36022), (16492, 33449), (18011, 30628), (18259, 30212), (20501, 26908), (22078, 24986)]