256957920

素因数分解:

$2^5\times 3^6\times 5^1\times {\mathrm{2203}}^1$

素因数の和:2236

約数の個数: 168

約数和(自身を含む): 910591416

約数和(自身を除く): 653633496

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 216, 240, 243, 270, 288, 324, 360, 405, 432, 480, 486, 540, 648, 720, 729, 810, 864, 972, 1080, 1215, 1296, 1440, 1458, 1620, 1944, 2160, 2203, 2430, 2592, 2916, 3240, 3645, 3888, 4320, 4406, 4860, 5832, 6480, 6609, 7290, 7776, 8812, 9720, 11015, 11664, 12960, 13218, 14580, 17624, 19440, 19827, 22030, 23328, 26436, 29160, 33045, 35248, 38880, 39654, 44060, 52872, 58320, 59481, 66090, 70496, 79308, 88120, 99135, 105744, 116640, 118962, 132180, 158616, 176240, 178443, 198270, 211488, 237924, 264360, 297405, 317232, 352480, 356886, 396540, 475848, 528720, 535329, 594810, 634464, 713772, 793080, 892215, 951696, 1057440, 1070658, 1189620, 1427544, 1586160, 1605987, 1784430, 1903392, 2141316, 2379240, 2676645, 2855088, 3172320, 3211974, 3568860, 4282632, 4758480, 5353290, 5710176, 6423948, 7137720, 8029935, 8565264, 9516960, 10706580, 12847896, 14275440, 16059870, 17130528, 21413160, 25695792, 28550880, 32119740, 42826320, 51391584, 64239480, 85652640, 128478960, 256957920]

約数ペア:

[(1, 256957920), (2, 128478960), (3, 85652640), (4, 64239480), (5, 51391584), (6, 42826320), (8, 32119740), (9, 28550880), (10, 25695792), (12, 21413160), (15, 17130528), (16, 16059870), (18, 14275440), (20, 12847896), (24, 10706580), (27, 9516960), (30, 8565264), (32, 8029935), (36, 7137720), (40, 6423948), (45, 5710176), (48, 5353290), (54, 4758480), (60, 4282632), (72, 3568860), (80, 3211974), (81, 3172320), (90, 2855088), (96, 2676645), (108, 2379240), (120, 2141316), (135, 1903392), (144, 1784430), (160, 1605987), (162, 1586160), (180, 1427544), (216, 1189620), (240, 1070658), (243, 1057440), (270, 951696), (288, 892215), (324, 793080), (360, 713772), (405, 634464), (432, 594810), (480, 535329), (486, 528720), (540, 475848), (648, 396540), (720, 356886), (729, 352480), (810, 317232), (864, 297405), (972, 264360), (1080, 237924), (1215, 211488), (1296, 198270), (1440, 178443), (1458, 176240), (1620, 158616), (1944, 132180), (2160, 118962), (2203, 116640), (2430, 105744), (2592, 99135), (2916, 88120), (3240, 79308), (3645, 70496), (3888, 66090), (4320, 59481), (4406, 58320), (4860, 52872), (5832, 44060), (6480, 39654), (6609, 38880), (7290, 35248), (7776, 33045), (8812, 29160), (9720, 26436), (11015, 23328), (11664, 22030), (12960, 19827), (13218, 19440), (14580, 17624)]