256085760

素因数分解:

$2^8\times 3^1\times 5^1\times 7^2\times {\mathrm{1361}}^1$

素因数の和:1399

約数の個数: 216

約数和(自身を含む): 952103376

約数和(自身を除く): 696017616

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 64, 70, 80, 84, 96, 98, 105, 112, 120, 128, 140, 147, 160, 168, 192, 196, 210, 224, 240, 245, 256, 280, 294, 320, 336, 384, 392, 420, 448, 480, 490, 560, 588, 640, 672, 735, 768, 784, 840, 896, 960, 980, 1120, 1176, 1280, 1344, 1361, 1470, 1568, 1680, 1792, 1920, 1960, 2240, 2352, 2688, 2722, 2940, 3136, 3360, 3840, 3920, 4083, 4480, 4704, 5376, 5444, 5880, 6272, 6720, 6805, 7840, 8166, 8960, 9408, 9527, 10888, 11760, 12544, 13440, 13610, 15680, 16332, 18816, 19054, 20415, 21776, 23520, 26880, 27220, 28581, 31360, 32664, 37632, 38108, 40830, 43552, 47040, 47635, 54440, 57162, 62720, 65328, 66689, 76216, 81660, 87104, 94080, 95270, 108880, 114324, 130656, 133378, 142905, 152432, 163320, 174208, 188160, 190540, 200067, 217760, 228648, 261312, 266756, 285810, 304864, 326640, 333445, 348416, 381080, 400134, 435520, 457296, 522624, 533512, 571620, 609728, 653280, 666890, 762160, 800268, 871040, 914592, 1000335, 1045248, 1067024, 1143240, 1219456, 1306560, 1333780, 1524320, 1600536, 1742080, 1829184, 2000670, 2134048, 2286480, 2438912, 2613120, 2667560, 3048640, 3201072, 3658368, 4001340, 4268096, 4572960, 5226240, 5335120, 6097280, 6402144, 7316736, 8002680, 8536192, 9145920, 10670240, 12194560, 12804288, 16005360, 17072384, 18291840, 21340480, 25608576, 32010720, 36583680, 42680960, 51217152, 64021440, 85361920, 128042880, 256085760]

約数ペア:

[(1, 256085760), (2, 128042880), (3, 85361920), (4, 64021440), (5, 51217152), (6, 42680960), (7, 36583680), (8, 32010720), (10, 25608576), (12, 21340480), (14, 18291840), (15, 17072384), (16, 16005360), (20, 12804288), (21, 12194560), (24, 10670240), (28, 9145920), (30, 8536192), (32, 8002680), (35, 7316736), (40, 6402144), (42, 6097280), (48, 5335120), (49, 5226240), (56, 4572960), (60, 4268096), (64, 4001340), (70, 3658368), (80, 3201072), (84, 3048640), (96, 2667560), (98, 2613120), (105, 2438912), (112, 2286480), (120, 2134048), (128, 2000670), (140, 1829184), (147, 1742080), (160, 1600536), (168, 1524320), (192, 1333780), (196, 1306560), (210, 1219456), (224, 1143240), (240, 1067024), (245, 1045248), (256, 1000335), (280, 914592), (294, 871040), (320, 800268), (336, 762160), (384, 666890), (392, 653280), (420, 609728), (448, 571620), (480, 533512), (490, 522624), (560, 457296), (588, 435520), (640, 400134), (672, 381080), (735, 348416), (768, 333445), (784, 326640), (840, 304864), (896, 285810), (960, 266756), (980, 261312), (1120, 228648), (1176, 217760), (1280, 200067), (1344, 190540), (1361, 188160), (1470, 174208), (1568, 163320), (1680, 152432), (1792, 142905), (1920, 133378), (1960, 130656), (2240, 114324), (2352, 108880), (2688, 95270), (2722, 94080), (2940, 87104), (3136, 81660), (3360, 76216), (3840, 66689), (3920, 65328), (4083, 62720), (4480, 57162), (4704, 54440), (5376, 47635), (5444, 47040), (5880, 43552), (6272, 40830), (6720, 38108), (6805, 37632), (7840, 32664), (8166, 31360), (8960, 28581), (9408, 27220), (9527, 26880), (10888, 23520), (11760, 21776), (12544, 20415), (13440, 19054), (13610, 18816), (15680, 16332)]