261038848

素因数分解:

$2^8\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1$

素因数の和:218

約数の個数: 144

約数和(自身を含む): 636289024

約数和(自身を除く): 375250176

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 37, 56, 62, 64, 74, 112, 124, 127, 128, 148, 217, 224, 248, 254, 256, 259, 296, 434, 448, 496, 508, 518, 592, 868, 889, 896, 992, 1016, 1036, 1147, 1184, 1736, 1778, 1792, 1984, 2032, 2072, 2294, 2368, 3472, 3556, 3937, 3968, 4064, 4144, 4588, 4699, 4736, 6944, 7112, 7874, 7936, 8029, 8128, 8288, 9176, 9398, 9472, 13888, 14224, 15748, 16058, 16256, 16576, 18352, 18796, 27559, 27776, 28448, 31496, 32116, 32512, 32893, 33152, 36704, 37592, 55118, 55552, 56896, 62992, 64232, 65786, 66304, 73408, 75184, 110236, 113792, 125984, 128464, 131572, 145669, 146816, 150368, 220472, 227584, 251968, 256928, 263144, 291338, 293632, 300736, 440944, 503936, 513856, 526288, 582676, 601472, 881888, 1007872, 1019683, 1027712, 1052576, 1165352, 1202944, 1763776, 2039366, 2055424, 2105152, 2330704, 3527552, 4078732, 4210304, 4661408, 7055104, 8157464, 8420608, 9322816, 16314928, 18645632, 32629856, 37291264, 65259712, 130519424, 261038848]

約数ペア:

[(1, 261038848), (2, 130519424), (4, 65259712), (7, 37291264), (8, 32629856), (14, 18645632), (16, 16314928), (28, 9322816), (31, 8420608), (32, 8157464), (37, 7055104), (56, 4661408), (62, 4210304), (64, 4078732), (74, 3527552), (112, 2330704), (124, 2105152), (127, 2055424), (128, 2039366), (148, 1763776), (217, 1202944), (224, 1165352), (248, 1052576), (254, 1027712), (256, 1019683), (259, 1007872), (296, 881888), (434, 601472), (448, 582676), (496, 526288), (508, 513856), (518, 503936), (592, 440944), (868, 300736), (889, 293632), (896, 291338), (992, 263144), (1016, 256928), (1036, 251968), (1147, 227584), (1184, 220472), (1736, 150368), (1778, 146816), (1792, 145669), (1984, 131572), (2032, 128464), (2072, 125984), (2294, 113792), (2368, 110236), (3472, 75184), (3556, 73408), (3937, 66304), (3968, 65786), (4064, 64232), (4144, 62992), (4588, 56896), (4699, 55552), (4736, 55118), (6944, 37592), (7112, 36704), (7874, 33152), (7936, 32893), (8029, 32512), (8128, 32116), (8288, 31496), (9176, 28448), (9398, 27776), (9472, 27559), (13888, 18796), (14224, 18352), (15748, 16576), (16058, 16256)]