20797643048

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{157}}^2$

素因数の和:420

約数の個数: 192

約数和(自身を含む): 51677942400

約数和(自身を除く): 30880299352

約数列:

[1, 2, 4, 7, 8, 13, 14, 19, 26, 28, 38, 52, 56, 61, 76, 91, 104, 122, 133, 152, 157, 182, 244, 247, 266, 314, 364, 427, 488, 494, 532, 628, 728, 793, 854, 988, 1064, 1099, 1159, 1256, 1586, 1708, 1729, 1976, 2041, 2198, 2318, 2983, 3172, 3416, 3458, 4082, 4396, 4636, 5551, 5966, 6344, 6916, 8113, 8164, 8792, 9272, 9577, 11102, 11932, 13832, 14287, 15067, 16226, 16328, 19154, 20881, 22204, 23864, 24649, 28574, 30134, 32452, 38308, 38779, 41762, 44408, 49298, 57148, 60268, 64904, 67039, 76616, 77558, 83524, 98596, 105469, 114296, 120536, 124501, 134078, 155116, 167048, 172543, 181963, 197192, 210938, 249002, 268156, 271453, 310232, 320437, 345086, 363926, 421876, 468331, 498004, 536312, 542906, 640874, 690172, 727852, 843752, 871507, 936662, 996008, 1085812, 1273741, 1281748, 1380344, 1455704, 1503589, 1743014, 1873324, 2171624, 2243059, 2365519, 2547482, 2563496, 3007178, 3278317, 3486028, 3746648, 4486118, 4731038, 5094964, 6014356, 6088303, 6556634, 6972056, 8972236, 9462076, 10189928, 10525123, 12028712, 12176606, 13113268, 16558633, 17944472, 18924152, 19546657, 21050246, 24353212, 26226536, 28568191, 33117266, 39093314, 42100492, 42618121, 48706424, 57136382, 66234532, 78186628, 84200984, 85236242, 114272764, 132469064, 136826599, 156373256, 170472484, 199977337, 228545528, 273653198, 340944968, 371386483, 399954674, 547306396, 742772966, 799909348, 1094612792, 1485545932, 1599818696, 2599705381, 2971091864, 5199410762, 10398821524, 20797643048]

約数ペア:

[(1, 20797643048), (2, 10398821524), (4, 5199410762), (7, 2971091864), (8, 2599705381), (13, 1599818696), (14, 1485545932), (19, 1094612792), (26, 799909348), (28, 742772966), (38, 547306396), (52, 399954674), (56, 371386483), (61, 340944968), (76, 273653198), (91, 228545528), (104, 199977337), (122, 170472484), (133, 156373256), (152, 136826599), (157, 132469064), (182, 114272764), (244, 85236242), (247, 84200984), (266, 78186628), (314, 66234532), (364, 57136382), (427, 48706424), (488, 42618121), (494, 42100492), (532, 39093314), (628, 33117266), (728, 28568191), (793, 26226536), (854, 24353212), (988, 21050246), (1064, 19546657), (1099, 18924152), (1159, 17944472), (1256, 16558633), (1586, 13113268), (1708, 12176606), (1729, 12028712), (1976, 10525123), (2041, 10189928), (2198, 9462076), (2318, 8972236), (2983, 6972056), (3172, 6556634), (3416, 6088303), (3458, 6014356), (4082, 5094964), (4396, 4731038), (4636, 4486118), (5551, 3746648), (5966, 3486028), (6344, 3278317), (6916, 3007178), (8113, 2563496), (8164, 2547482), (8792, 2365519), (9272, 2243059), (9577, 2171624), (11102, 1873324), (11932, 1743014), (13832, 1503589), (14287, 1455704), (15067, 1380344), (16226, 1281748), (16328, 1273741), (19154, 1085812), (20881, 996008), (22204, 936662), (23864, 871507), (24649, 843752), (28574, 727852), (30134, 690172), (32452, 640874), (38308, 542906), (38779, 536312), (41762, 498004), (44408, 468331), (49298, 421876), (57148, 363926), (60268, 345086), (64904, 320437), (67039, 310232), (76616, 271453), (77558, 268156), (83524, 249002), (98596, 210938), (105469, 197192), (114296, 181963), (120536, 172543), (124501, 167048), (134078, 155116)]