20890322964

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{652741}}^1$

素因数の和:652885

約数の個数: 72

約数和(自身を含む): 60825110528

約数和(自身を除く): 39934787564

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 127, 252, 254, 381, 508, 762, 889, 1143, 1524, 1778, 2286, 2667, 3556, 4572, 5334, 8001, 10668, 16002, 32004, 652741, 1305482, 1958223, 2610964, 3916446, 4569187, 5874669, 7832892, 9138374, 11749338, 13707561, 18276748, 23498676, 27415122, 41122683, 54830244, 82245366, 82898107, 164490732, 165796214, 248694321, 331592428, 497388642, 580286749, 746082963, 994777284, 1160573498, 1492165926, 1740860247, 2321146996, 2984331852, 3481720494, 5222580741, 6963440988, 10445161482, 20890322964]

約数ペア:

[(1, 20890322964), (2, 10445161482), (3, 6963440988), (4, 5222580741), (6, 3481720494), (7, 2984331852), (9, 2321146996), (12, 1740860247), (14, 1492165926), (18, 1160573498), (21, 994777284), (28, 746082963), (36, 580286749), (42, 497388642), (63, 331592428), (84, 248694321), (126, 165796214), (127, 164490732), (252, 82898107), (254, 82245366), (381, 54830244), (508, 41122683), (762, 27415122), (889, 23498676), (1143, 18276748), (1524, 13707561), (1778, 11749338), (2286, 9138374), (2667, 7832892), (3556, 5874669), (4572, 4569187), (5334, 3916446), (8001, 2610964), (10668, 1958223), (16002, 1305482), (32004, 652741)]