256530456

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:487

約数の個数: 256

約数和(自身を含む): 907468800

約数和(自身を除く): 650938344

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 18, 21, 24, 26, 27, 28, 31, 36, 39, 42, 52, 54, 56, 62, 63, 72, 78, 84, 91, 93, 104, 108, 117, 124, 126, 156, 168, 182, 186, 189, 216, 217, 234, 248, 252, 273, 279, 312, 351, 364, 372, 378, 403, 421, 434, 468, 504, 546, 558, 651, 702, 728, 744, 756, 806, 819, 837, 842, 868, 936, 1092, 1116, 1209, 1263, 1302, 1404, 1512, 1612, 1638, 1674, 1684, 1736, 1953, 2184, 2232, 2418, 2457, 2526, 2604, 2808, 2821, 2947, 3224, 3276, 3348, 3368, 3627, 3789, 3906, 4836, 4914, 5052, 5208, 5473, 5642, 5859, 5894, 6552, 6696, 7254, 7578, 7812, 8463, 8841, 9672, 9828, 10104, 10881, 10946, 11284, 11367, 11718, 11788, 13051, 14508, 15156, 15624, 16419, 16926, 17682, 19656, 21762, 21892, 22568, 22734, 23436, 23576, 25389, 26102, 26523, 29016, 30312, 32838, 33852, 35364, 38311, 39153, 43524, 43784, 45468, 46872, 49257, 50778, 52204, 53046, 65676, 67704, 70728, 76167, 76622, 78306, 79569, 87048, 90936, 91357, 98514, 101556, 104408, 106092, 114933, 117459, 131352, 147771, 152334, 153244, 156612, 159138, 169663, 182714, 197028, 203112, 212184, 229866, 234918, 274071, 295542, 304668, 306488, 313224, 318276, 339326, 344799, 352377, 365428, 394056, 459732, 469836, 508989, 548142, 591084, 609336, 636552, 678652, 689598, 704754, 730856, 822213, 919464, 939672, 1017978, 1034397, 1096284, 1182168, 1187641, 1357304, 1379196, 1409508, 1526967, 1644426, 2035956, 2068794, 2192568, 2375282, 2466639, 2758392, 2819016, 3053934, 3288852, 3562923, 4071912, 4137588, 4580901, 4750564, 4933278, 6107868, 6577704, 7125846, 8275176, 9161802, 9501128, 9866556, 10688769, 12215736, 14251692, 18323604, 19733112, 21377538, 28503384, 32066307, 36647208, 42755076, 64132614, 85510152, 128265228, 256530456]

約数ペア:

[(1, 256530456), (2, 128265228), (3, 85510152), (4, 64132614), (6, 42755076), (7, 36647208), (8, 32066307), (9, 28503384), (12, 21377538), (13, 19733112), (14, 18323604), (18, 14251692), (21, 12215736), (24, 10688769), (26, 9866556), (27, 9501128), (28, 9161802), (31, 8275176), (36, 7125846), (39, 6577704), (42, 6107868), (52, 4933278), (54, 4750564), (56, 4580901), (62, 4137588), (63, 4071912), (72, 3562923), (78, 3288852), (84, 3053934), (91, 2819016), (93, 2758392), (104, 2466639), (108, 2375282), (117, 2192568), (124, 2068794), (126, 2035956), (156, 1644426), (168, 1526967), (182, 1409508), (186, 1379196), (189, 1357304), (216, 1187641), (217, 1182168), (234, 1096284), (248, 1034397), (252, 1017978), (273, 939672), (279, 919464), (312, 822213), (351, 730856), (364, 704754), (372, 689598), (378, 678652), (403, 636552), (421, 609336), (434, 591084), (468, 548142), (504, 508989), (546, 469836), (558, 459732), (651, 394056), (702, 365428), (728, 352377), (744, 344799), (756, 339326), (806, 318276), (819, 313224), (837, 306488), (842, 304668), (868, 295542), (936, 274071), (1092, 234918), (1116, 229866), (1209, 212184), (1263, 203112), (1302, 197028), (1404, 182714), (1512, 169663), (1612, 159138), (1638, 156612), (1674, 153244), (1684, 152334), (1736, 147771), (1953, 131352), (2184, 117459), (2232, 114933), (2418, 106092), (2457, 104408), (2526, 101556), (2604, 98514), (2808, 91357), (2821, 90936), (2947, 87048), (3224, 79569), (3276, 78306), (3348, 76622), (3368, 76167), (3627, 70728), (3789, 67704), (3906, 65676), (4836, 53046), (4914, 52204), (5052, 50778), (5208, 49257), (5473, 46872), (5642, 45468), (5859, 43784), (5894, 43524), (6552, 39153), (6696, 38311), (7254, 35364), (7578, 33852), (7812, 32838), (8463, 30312), (8841, 29016), (9672, 26523), (9828, 26102), (10104, 25389), (10881, 23576), (10946, 23436), (11284, 22734), (11367, 22568), (11718, 21892), (11788, 21762), (13051, 19656), (14508, 17682), (15156, 16926), (15624, 16419)]