20178076815

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{41}}^2\times {\mathrm{71}}^1$

素因数の和:211

約数の個数: 216

約数和(自身を含む): 41589029664

約数和(自身を除く): 21410952849

約数列:

[1, 3, 5, 9, 13, 15, 17, 39, 41, 45, 51, 65, 71, 85, 117, 123, 153, 195, 205, 213, 221, 255, 289, 355, 369, 533, 585, 615, 639, 663, 697, 765, 867, 923, 1065, 1105, 1207, 1445, 1599, 1681, 1845, 1989, 2091, 2601, 2665, 2769, 2911, 3195, 3315, 3485, 3621, 3757, 4335, 4615, 4797, 5043, 6035, 6273, 7995, 8307, 8405, 8733, 9061, 9945, 10455, 10863, 11271, 11849, 13005, 13845, 14555, 15129, 15691, 18105, 18785, 20519, 21853, 23985, 25215, 26199, 27183, 28577, 31365, 33813, 35547, 37843, 41535, 43665, 45305, 47073, 49487, 54315, 56355, 59245, 61557, 65559, 75645, 78455, 81549, 85731, 102595, 106641, 109265, 113529, 119351, 130995, 135915, 141219, 142885, 148461, 154037, 169065, 177735, 184671, 189215, 196677, 235365, 247435, 257193, 266747, 307785, 327795, 340587, 358053, 371501, 407745, 428655, 445383, 462111, 485809, 533205, 567645, 596755, 643331, 706095, 742305, 770185, 800241, 841279, 923355, 983385, 1074159, 1114503, 1285965, 1333735, 1386333, 1457427, 1551563, 1702935, 1790265, 1857505, 1929993, 2028967, 2226915, 2310555, 2400723, 2429045, 2523837, 3216655, 3343509, 4001205, 4206395, 4372281, 4654689, 5370795, 5572515, 5789979, 6086901, 6315517, 6931665, 7287135, 7571511, 7757815, 9649965, 10144835, 10936627, 12003615, 12619185, 13964067, 16717545, 18260703, 18946551, 21861405, 23273445, 26376571, 28949895, 30434505, 31577585, 32809881, 34492439, 37857555, 54683135, 56839653, 69820335, 79129713, 91303515, 94732755, 98429643, 103477317, 131882855, 164049405, 172462195, 237389139, 284198265, 310431951, 395648565, 448401707, 492148215, 517386585, 1186945695, 1345205121, 1552159755, 2242008535, 4035615363, 6726025605, 20178076815]

約数ペア:

[(1, 20178076815), (3, 6726025605), (5, 4035615363), (9, 2242008535), (13, 1552159755), (15, 1345205121), (17, 1186945695), (39, 517386585), (41, 492148215), (45, 448401707), (51, 395648565), (65, 310431951), (71, 284198265), (85, 237389139), (117, 172462195), (123, 164049405), (153, 131882855), (195, 103477317), (205, 98429643), (213, 94732755), (221, 91303515), (255, 79129713), (289, 69820335), (355, 56839653), (369, 54683135), (533, 37857555), (585, 34492439), (615, 32809881), (639, 31577585), (663, 30434505), (697, 28949895), (765, 26376571), (867, 23273445), (923, 21861405), (1065, 18946551), (1105, 18260703), (1207, 16717545), (1445, 13964067), (1599, 12619185), (1681, 12003615), (1845, 10936627), (1989, 10144835), (2091, 9649965), (2601, 7757815), (2665, 7571511), (2769, 7287135), (2911, 6931665), (3195, 6315517), (3315, 6086901), (3485, 5789979), (3621, 5572515), (3757, 5370795), (4335, 4654689), (4615, 4372281), (4797, 4206395), (5043, 4001205), (6035, 3343509), (6273, 3216655), (7995, 2523837), (8307, 2429045), (8405, 2400723), (8733, 2310555), (9061, 2226915), (9945, 2028967), (10455, 1929993), (10863, 1857505), (11271, 1790265), (11849, 1702935), (13005, 1551563), (13845, 1457427), (14555, 1386333), (15129, 1333735), (15691, 1285965), (18105, 1114503), (18785, 1074159), (20519, 983385), (21853, 923355), (23985, 841279), (25215, 800241), (26199, 770185), (27183, 742305), (28577, 706095), (31365, 643331), (33813, 596755), (35547, 567645), (37843, 533205), (41535, 485809), (43665, 462111), (45305, 445383), (47073, 428655), (49487, 407745), (54315, 371501), (56355, 358053), (59245, 340587), (61557, 327795), (65559, 307785), (75645, 266747), (78455, 257193), (81549, 247435), (85731, 235365), (102595, 196677), (106641, 189215), (109265, 184671), (113529, 177735), (119351, 169065), (130995, 154037), (135915, 148461), (141219, 142885)]