256961808

素因数分解:

$2^4\times 3^5\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:148

約数の個数: 240

約数和(自身を含む): 804323520

約数和(自身を除く): 547361712

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 29, 36, 43, 48, 53, 54, 58, 72, 81, 86, 87, 106, 108, 116, 129, 144, 159, 162, 172, 174, 212, 216, 232, 243, 258, 261, 318, 324, 344, 348, 387, 424, 432, 464, 477, 486, 516, 522, 636, 648, 688, 696, 774, 783, 848, 954, 972, 1032, 1044, 1161, 1247, 1272, 1296, 1392, 1431, 1537, 1548, 1566, 1908, 1944, 2064, 2088, 2279, 2322, 2349, 2494, 2544, 2862, 3074, 3096, 3132, 3483, 3741, 3816, 3888, 4176, 4293, 4558, 4611, 4644, 4698, 4988, 5724, 6148, 6192, 6264, 6837, 6966, 7047, 7482, 7632, 8586, 9116, 9222, 9288, 9396, 9976, 10449, 11223, 11448, 12296, 12528, 12879, 13674, 13833, 13932, 14094, 14964, 17172, 18232, 18444, 18576, 18792, 19952, 20511, 20898, 22446, 22896, 24592, 25758, 27348, 27666, 27864, 28188, 29928, 33669, 34344, 36464, 36888, 37584, 41022, 41499, 41796, 44892, 51516, 54696, 55332, 55728, 56376, 59856, 61533, 66091, 67338, 68688, 73776, 82044, 82998, 83592, 89784, 101007, 103032, 109392, 110664, 112752, 123066, 124497, 132182, 134676, 164088, 165996, 167184, 179568, 184599, 198273, 202014, 206064, 221328, 246132, 248994, 264364, 269352, 303021, 328176, 331992, 369198, 373491, 396546, 404028, 492264, 497988, 528728, 538704, 553797, 594819, 606042, 663984, 738396, 746982, 793092, 808056, 984528, 995976, 1057456, 1107594, 1189638, 1212084, 1476792, 1493964, 1586184, 1616112, 1784457, 1991952, 2215188, 2379276, 2424168, 2953584, 2987928, 3172368, 3568914, 4430376, 4758552, 4848336, 5353371, 5975856, 7137828, 8860752, 9517104, 10706742, 14275656, 16060113, 21413484, 28551312, 32120226, 42826968, 64240452, 85653936, 128480904, 256961808]

約数ペア:

[(1, 256961808), (2, 128480904), (3, 85653936), (4, 64240452), (6, 42826968), (8, 32120226), (9, 28551312), (12, 21413484), (16, 16060113), (18, 14275656), (24, 10706742), (27, 9517104), (29, 8860752), (36, 7137828), (43, 5975856), (48, 5353371), (53, 4848336), (54, 4758552), (58, 4430376), (72, 3568914), (81, 3172368), (86, 2987928), (87, 2953584), (106, 2424168), (108, 2379276), (116, 2215188), (129, 1991952), (144, 1784457), (159, 1616112), (162, 1586184), (172, 1493964), (174, 1476792), (212, 1212084), (216, 1189638), (232, 1107594), (243, 1057456), (258, 995976), (261, 984528), (318, 808056), (324, 793092), (344, 746982), (348, 738396), (387, 663984), (424, 606042), (432, 594819), (464, 553797), (477, 538704), (486, 528728), (516, 497988), (522, 492264), (636, 404028), (648, 396546), (688, 373491), (696, 369198), (774, 331992), (783, 328176), (848, 303021), (954, 269352), (972, 264364), (1032, 248994), (1044, 246132), (1161, 221328), (1247, 206064), (1272, 202014), (1296, 198273), (1392, 184599), (1431, 179568), (1537, 167184), (1548, 165996), (1566, 164088), (1908, 134676), (1944, 132182), (2064, 124497), (2088, 123066), (2279, 112752), (2322, 110664), (2349, 109392), (2494, 103032), (2544, 101007), (2862, 89784), (3074, 83592), (3096, 82998), (3132, 82044), (3483, 73776), (3741, 68688), (3816, 67338), (3888, 66091), (4176, 61533), (4293, 59856), (4558, 56376), (4611, 55728), (4644, 55332), (4698, 54696), (4988, 51516), (5724, 44892), (6148, 41796), (6192, 41499), (6264, 41022), (6837, 37584), (6966, 36888), (7047, 36464), (7482, 34344), (7632, 33669), (8586, 29928), (9116, 28188), (9222, 27864), (9288, 27666), (9396, 27348), (9976, 25758), (10449, 24592), (11223, 22896), (11448, 22446), (12296, 20898), (12528, 20511), (12879, 19952), (13674, 18792), (13833, 18576), (13932, 18444), (14094, 18232), (14964, 17172)]