256656542672

素因数分解:

$2^4\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{881}}^1\times {\mathrm{1627}}^1$

素因数の和:2585

約数の個数: 120

約数和(自身を含む): 542699764992

約数和(自身を除く): 286043222320

約数列:

[1, 2, 4, 8, 16, 19, 31, 38, 62, 76, 124, 152, 248, 304, 361, 496, 589, 722, 881, 1178, 1444, 1627, 1762, 2356, 2888, 3254, 3524, 4712, 5776, 6508, 7048, 9424, 11191, 13016, 14096, 16739, 22382, 26032, 27311, 30913, 33478, 44764, 50437, 54622, 61826, 66956, 89528, 100874, 109244, 123652, 133912, 179056, 201748, 218488, 247304, 267824, 318041, 403496, 436976, 494608, 518909, 587347, 636082, 806992, 958303, 1037818, 1174694, 1272164, 1433387, 1916606, 2075636, 2349388, 2544328, 2866774, 3833212, 4151272, 4698776, 5088656, 5733548, 7666424, 8302544, 9397552, 9859271, 11467096, 15332848, 18207757, 19718542, 22934192, 27234353, 36415514, 39437084, 44434997, 54468706, 72831028, 78874168, 88869994, 108937412, 145662056, 157748336, 177739988, 217874824, 291324112, 355479976, 435749648, 517452707, 710959952, 844264943, 1034905414, 1688529886, 2069810828, 3377059772, 4139621656, 6754119544, 8279243312, 13508239088, 16041033917, 32082067834, 64164135668, 128328271336, 256656542672]

約数ペア:

[(1, 256656542672), (2, 128328271336), (4, 64164135668), (8, 32082067834), (16, 16041033917), (19, 13508239088), (31, 8279243312), (38, 6754119544), (62, 4139621656), (76, 3377059772), (124, 2069810828), (152, 1688529886), (248, 1034905414), (304, 844264943), (361, 710959952), (496, 517452707), (589, 435749648), (722, 355479976), (881, 291324112), (1178, 217874824), (1444, 177739988), (1627, 157748336), (1762, 145662056), (2356, 108937412), (2888, 88869994), (3254, 78874168), (3524, 72831028), (4712, 54468706), (5776, 44434997), (6508, 39437084), (7048, 36415514), (9424, 27234353), (11191, 22934192), (13016, 19718542), (14096, 18207757), (16739, 15332848), (22382, 11467096), (26032, 9859271), (27311, 9397552), (30913, 8302544), (33478, 7666424), (44764, 5733548), (50437, 5088656), (54622, 4698776), (61826, 4151272), (66956, 3833212), (89528, 2866774), (100874, 2544328), (109244, 2349388), (123652, 2075636), (133912, 1916606), (179056, 1433387), (201748, 1272164), (218488, 1174694), (247304, 1037818), (267824, 958303), (318041, 806992), (403496, 636082), (436976, 587347), (494608, 518909)]