256742928

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:206

約数の個数: 240

約数和(自身を含む): 828696960

約数和(自身を除く): 571954032

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 23, 24, 26, 36, 39, 46, 48, 52, 67, 69, 72, 78, 89, 92, 104, 117, 134, 138, 144, 156, 178, 184, 201, 207, 208, 234, 267, 268, 276, 299, 312, 356, 368, 402, 414, 468, 534, 536, 552, 598, 603, 624, 712, 801, 804, 828, 871, 897, 936, 1068, 1072, 1104, 1157, 1196, 1206, 1424, 1541, 1602, 1608, 1656, 1742, 1794, 1872, 2047, 2136, 2314, 2392, 2412, 2613, 2691, 3082, 3204, 3216, 3312, 3471, 3484, 3588, 4094, 4272, 4623, 4628, 4784, 4824, 5226, 5382, 5963, 6141, 6164, 6408, 6942, 6968, 7176, 7839, 8188, 9246, 9256, 9648, 10413, 10452, 10764, 11926, 12282, 12328, 12816, 13869, 13884, 13936, 14352, 15678, 16376, 17889, 18423, 18492, 18512, 20033, 20826, 20904, 21528, 23852, 24564, 24656, 26611, 27738, 27768, 31356, 32752, 35778, 36846, 36984, 40066, 41652, 41808, 43056, 47704, 49128, 53222, 53667, 55476, 55536, 60099, 62712, 71556, 73692, 73968, 77519, 79833, 80132, 83304, 95408, 98256, 106444, 107334, 110952, 120198, 125424, 137149, 143112, 147384, 155038, 159666, 160264, 166608, 180297, 212888, 214668, 221904, 232557, 239499, 240396, 274298, 286224, 294768, 310076, 319332, 320528, 360594, 411447, 425776, 429336, 465114, 478998, 480792, 548596, 620152, 638664, 697671, 721188, 822894, 858672, 930228, 957996, 961584, 1097192, 1234341, 1240304, 1277328, 1395342, 1442376, 1645788, 1782937, 1860456, 1915992, 2194384, 2468682, 2790684, 2884752, 3291576, 3565874, 3720912, 3831984, 4937364, 5348811, 5581368, 6583152, 7131748, 9874728, 10697622, 11162736, 14263496, 16046433, 19749456, 21395244, 28526992, 32092866, 42790488, 64185732, 85580976, 128371464, 256742928]

約数ペア:

[(1, 256742928), (2, 128371464), (3, 85580976), (4, 64185732), (6, 42790488), (8, 32092866), (9, 28526992), (12, 21395244), (13, 19749456), (16, 16046433), (18, 14263496), (23, 11162736), (24, 10697622), (26, 9874728), (36, 7131748), (39, 6583152), (46, 5581368), (48, 5348811), (52, 4937364), (67, 3831984), (69, 3720912), (72, 3565874), (78, 3291576), (89, 2884752), (92, 2790684), (104, 2468682), (117, 2194384), (134, 1915992), (138, 1860456), (144, 1782937), (156, 1645788), (178, 1442376), (184, 1395342), (201, 1277328), (207, 1240304), (208, 1234341), (234, 1097192), (267, 961584), (268, 957996), (276, 930228), (299, 858672), (312, 822894), (356, 721188), (368, 697671), (402, 638664), (414, 620152), (468, 548596), (534, 480792), (536, 478998), (552, 465114), (598, 429336), (603, 425776), (624, 411447), (712, 360594), (801, 320528), (804, 319332), (828, 310076), (871, 294768), (897, 286224), (936, 274298), (1068, 240396), (1072, 239499), (1104, 232557), (1157, 221904), (1196, 214668), (1206, 212888), (1424, 180297), (1541, 166608), (1602, 160264), (1608, 159666), (1656, 155038), (1742, 147384), (1794, 143112), (1872, 137149), (2047, 125424), (2136, 120198), (2314, 110952), (2392, 107334), (2412, 106444), (2613, 98256), (2691, 95408), (3082, 83304), (3204, 80132), (3216, 79833), (3312, 77519), (3471, 73968), (3484, 73692), (3588, 71556), (4094, 62712), (4272, 60099), (4623, 55536), (4628, 55476), (4784, 53667), (4824, 53222), (5226, 49128), (5382, 47704), (5963, 43056), (6141, 41808), (6164, 41652), (6408, 40066), (6942, 36984), (6968, 36846), (7176, 35778), (7839, 32752), (8188, 31356), (9246, 27768), (9256, 27738), (9648, 26611), (10413, 24656), (10452, 24564), (10764, 23852), (11926, 21528), (12282, 20904), (12328, 20826), (12816, 20033), (13869, 18512), (13884, 18492), (13936, 18423), (14352, 17889), (15678, 16376)]