20804557696

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{83911}}^1$

素因数の和:84087

約数の個数: 64

約数和(自身を含む): 44934876000

約数和(自身を除く): 24130318304

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 149, 208, 298, 416, 596, 832, 1192, 1664, 1937, 2384, 3874, 4768, 7748, 9536, 15496, 19072, 30992, 61984, 83911, 123968, 167822, 247936, 335644, 671288, 1090843, 1342576, 2181686, 2685152, 4363372, 5370304, 8726744, 10740608, 12502739, 17453488, 25005478, 34906976, 50010956, 69813952, 100021912, 139627904, 162535607, 200043824, 325071214, 400087648, 650142428, 800175296, 1300284856, 1600350592, 2600569712, 5201139424, 10402278848, 20804557696]

約数ペア:

[(1, 20804557696), (2, 10402278848), (4, 5201139424), (8, 2600569712), (13, 1600350592), (16, 1300284856), (26, 800175296), (32, 650142428), (52, 400087648), (64, 325071214), (104, 200043824), (128, 162535607), (149, 139627904), (208, 100021912), (298, 69813952), (416, 50010956), (596, 34906976), (832, 25005478), (1192, 17453488), (1664, 12502739), (1937, 10740608), (2384, 8726744), (3874, 5370304), (4768, 4363372), (7748, 2685152), (9536, 2181686), (15496, 1342576), (19072, 1090843), (30992, 671288), (61984, 335644), (83911, 247936), (123968, 167822)]