256740016

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1373}}^1$

素因数の和:1454

約数の個数: 80

約数和(自身を含む): 572463360

約数和(自身を除く): 315723344

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 31, 52, 58, 62, 104, 116, 124, 208, 232, 248, 377, 403, 464, 496, 754, 806, 899, 1373, 1508, 1612, 1798, 2746, 3016, 3224, 3596, 5492, 6032, 6448, 7192, 10984, 11687, 14384, 17849, 21968, 23374, 35698, 39817, 42563, 46748, 71396, 79634, 85126, 93496, 142792, 159268, 170252, 186992, 285584, 318536, 340504, 517621, 553319, 637072, 681008, 1035242, 1106638, 1234327, 2070484, 2213276, 2468654, 4140968, 4426552, 4937308, 8281936, 8853104, 9874616, 16046251, 19749232, 32092502, 64185004, 128370008, 256740016]

約数ペア:

[(1, 256740016), (2, 128370008), (4, 64185004), (8, 32092502), (13, 19749232), (16, 16046251), (26, 9874616), (29, 8853104), (31, 8281936), (52, 4937308), (58, 4426552), (62, 4140968), (104, 2468654), (116, 2213276), (124, 2070484), (208, 1234327), (232, 1106638), (248, 1035242), (377, 681008), (403, 637072), (464, 553319), (496, 517621), (754, 340504), (806, 318536), (899, 285584), (1373, 186992), (1508, 170252), (1612, 159268), (1798, 142792), (2746, 93496), (3016, 85126), (3224, 79634), (3596, 71396), (5492, 46748), (6032, 42563), (6448, 39817), (7192, 35698), (10984, 23374), (11687, 21968), (14384, 17849)]