81287136

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{661}}^1$

素因数の和:745

約数の個数: 144

約数和(自身を含む): 268920288

約数和(自身を除く): 187633152

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 56, 61, 63, 72, 84, 96, 112, 122, 126, 144, 168, 183, 224, 244, 252, 288, 336, 366, 427, 488, 504, 549, 661, 672, 732, 854, 976, 1008, 1098, 1281, 1322, 1464, 1708, 1952, 1983, 2016, 2196, 2562, 2644, 2928, 3416, 3843, 3966, 4392, 4627, 5124, 5288, 5856, 5949, 6832, 7686, 7932, 8784, 9254, 10248, 10576, 11898, 13664, 13881, 15372, 15864, 17568, 18508, 20496, 21152, 23796, 27762, 30744, 31728, 37016, 40321, 40992, 41643, 47592, 55524, 61488, 63456, 74032, 80642, 83286, 95184, 111048, 120963, 122976, 148064, 161284, 166572, 190368, 222096, 241926, 282247, 322568, 333144, 362889, 444192, 483852, 564494, 645136, 666288, 725778, 846741, 967704, 1128988, 1290272, 1332576, 1451556, 1693482, 1935408, 2257976, 2540223, 2903112, 3386964, 3870816, 4515952, 5080446, 5806224, 6773928, 9031904, 10160892, 11612448, 13547856, 20321784, 27095712, 40643568, 81287136]

約数ペア:

[(1, 81287136), (2, 40643568), (3, 27095712), (4, 20321784), (6, 13547856), (7, 11612448), (8, 10160892), (9, 9031904), (12, 6773928), (14, 5806224), (16, 5080446), (18, 4515952), (21, 3870816), (24, 3386964), (28, 2903112), (32, 2540223), (36, 2257976), (42, 1935408), (48, 1693482), (56, 1451556), (61, 1332576), (63, 1290272), (72, 1128988), (84, 967704), (96, 846741), (112, 725778), (122, 666288), (126, 645136), (144, 564494), (168, 483852), (183, 444192), (224, 362889), (244, 333144), (252, 322568), (288, 282247), (336, 241926), (366, 222096), (427, 190368), (488, 166572), (504, 161284), (549, 148064), (661, 122976), (672, 120963), (732, 111048), (854, 95184), (976, 83286), (1008, 80642), (1098, 74032), (1281, 63456), (1322, 61488), (1464, 55524), (1708, 47592), (1952, 41643), (1983, 40992), (2016, 40321), (2196, 37016), (2562, 31728), (2644, 30744), (2928, 27762), (3416, 23796), (3843, 21152), (3966, 20496), (4392, 18508), (4627, 17568), (5124, 15864), (5288, 15372), (5856, 13881), (5949, 13664), (6832, 11898), (7686, 10576), (7932, 10248), (8784, 9254)]