291265288

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{197}}^1$

素因数の和:430

約数の個数: 64

約数和(自身を含む): 590198400

約数和(自身を除く): 298933112

約数列:

[1, 2, 4, 8, 19, 38, 71, 76, 137, 142, 152, 197, 274, 284, 394, 548, 568, 788, 1096, 1349, 1576, 2603, 2698, 3743, 5206, 5396, 7486, 9727, 10412, 10792, 13987, 14972, 19454, 20824, 26989, 27974, 29944, 38908, 53978, 55948, 77816, 107956, 111896, 184813, 215912, 265753, 369626, 512791, 531506, 739252, 1025582, 1063012, 1478504, 1916219, 2051164, 2126024, 3832438, 4102328, 7664876, 15329752, 36408161, 72816322, 145632644, 291265288]

約数ペア:

[(1, 291265288), (2, 145632644), (4, 72816322), (8, 36408161), (19, 15329752), (38, 7664876), (71, 4102328), (76, 3832438), (137, 2126024), (142, 2051164), (152, 1916219), (197, 1478504), (274, 1063012), (284, 1025582), (394, 739252), (548, 531506), (568, 512791), (788, 369626), (1096, 265753), (1349, 215912), (1576, 184813), (2603, 111896), (2698, 107956), (3743, 77816), (5206, 55948), (5396, 53978), (7486, 38908), (9727, 29944), (10412, 27974), (10792, 26989), (13987, 20824), (14972, 19454)]