20199311992

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{619}}^1\times {\mathrm{787}}^1$

素因数の和:1556

約数の個数: 64

約数和(自身を含む): 39045715200

約数和(自身を除く): 18846403208

約数列:

[1, 2, 4, 8, 71, 73, 142, 146, 284, 292, 568, 584, 619, 787, 1238, 1574, 2476, 3148, 4952, 5183, 6296, 10366, 20732, 41464, 43949, 45187, 55877, 57451, 87898, 90374, 111754, 114902, 175796, 180748, 223508, 229804, 351592, 361496, 447016, 459608, 487153, 974306, 1948612, 3208277, 3897224, 4079021, 6416554, 8158042, 12833108, 16316084, 25666216, 32632168, 34587863, 35562169, 69175726, 71124338, 138351452, 142248676, 276702904, 284497352, 2524913999, 5049827998, 10099655996, 20199311992]

約数ペア:

[(1, 20199311992), (2, 10099655996), (4, 5049827998), (8, 2524913999), (71, 284497352), (73, 276702904), (142, 142248676), (146, 138351452), (284, 71124338), (292, 69175726), (568, 35562169), (584, 34587863), (619, 32632168), (787, 25666216), (1238, 16316084), (1574, 12833108), (2476, 8158042), (3148, 6416554), (4952, 4079021), (5183, 3897224), (6296, 3208277), (10366, 1948612), (20732, 974306), (41464, 487153), (43949, 459608), (45187, 447016), (55877, 361496), (57451, 351592), (87898, 229804), (90374, 223508), (111754, 180748), (114902, 175796)]