256166400

素因数分解:

$2^9\times 3^1\times 5^2\times 7^1\times {\mathrm{953}}^1$

素因数の和:991

約数の個数: 240

約数和(自身を含む): 968134464

約数和(自身を除く): 711968064

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 25, 28, 30, 32, 35, 40, 42, 48, 50, 56, 60, 64, 70, 75, 80, 84, 96, 100, 105, 112, 120, 128, 140, 150, 160, 168, 175, 192, 200, 210, 224, 240, 256, 280, 300, 320, 336, 350, 384, 400, 420, 448, 480, 512, 525, 560, 600, 640, 672, 700, 768, 800, 840, 896, 953, 960, 1050, 1120, 1200, 1280, 1344, 1400, 1536, 1600, 1680, 1792, 1906, 1920, 2100, 2240, 2400, 2560, 2688, 2800, 2859, 3200, 3360, 3584, 3812, 3840, 4200, 4480, 4765, 4800, 5376, 5600, 5718, 6400, 6671, 6720, 7624, 7680, 8400, 8960, 9530, 9600, 10752, 11200, 11436, 12800, 13342, 13440, 14295, 15248, 16800, 17920, 19060, 19200, 20013, 22400, 22872, 23825, 26684, 26880, 28590, 30496, 33355, 33600, 38120, 38400, 40026, 44800, 45744, 47650, 53368, 53760, 57180, 60992, 66710, 67200, 71475, 76240, 80052, 89600, 91488, 95300, 100065, 106736, 114360, 121984, 133420, 134400, 142950, 152480, 160104, 166775, 182976, 190600, 200130, 213472, 228720, 243968, 266840, 268800, 285900, 304960, 320208, 333550, 365952, 381200, 400260, 426944, 457440, 487936, 500325, 533680, 571800, 609920, 640416, 667100, 731904, 762400, 800520, 853888, 914880, 1000650, 1067360, 1143600, 1219840, 1280832, 1334200, 1463808, 1524800, 1601040, 1707776, 1829760, 2001300, 2134720, 2287200, 2439680, 2561664, 2668400, 3049600, 3202080, 3415552, 3659520, 4002600, 4269440, 4574400, 5123328, 5336800, 6099200, 6404160, 7319040, 8005200, 8538880, 9148800, 10246656, 10673600, 12198400, 12808320, 16010400, 17077760, 18297600, 21347200, 25616640, 32020800, 36595200, 42694400, 51233280, 64041600, 85388800, 128083200, 256166400]

約数ペア:

[(1, 256166400), (2, 128083200), (3, 85388800), (4, 64041600), (5, 51233280), (6, 42694400), (7, 36595200), (8, 32020800), (10, 25616640), (12, 21347200), (14, 18297600), (15, 17077760), (16, 16010400), (20, 12808320), (21, 12198400), (24, 10673600), (25, 10246656), (28, 9148800), (30, 8538880), (32, 8005200), (35, 7319040), (40, 6404160), (42, 6099200), (48, 5336800), (50, 5123328), (56, 4574400), (60, 4269440), (64, 4002600), (70, 3659520), (75, 3415552), (80, 3202080), (84, 3049600), (96, 2668400), (100, 2561664), (105, 2439680), (112, 2287200), (120, 2134720), (128, 2001300), (140, 1829760), (150, 1707776), (160, 1601040), (168, 1524800), (175, 1463808), (192, 1334200), (200, 1280832), (210, 1219840), (224, 1143600), (240, 1067360), (256, 1000650), (280, 914880), (300, 853888), (320, 800520), (336, 762400), (350, 731904), (384, 667100), (400, 640416), (420, 609920), (448, 571800), (480, 533680), (512, 500325), (525, 487936), (560, 457440), (600, 426944), (640, 400260), (672, 381200), (700, 365952), (768, 333550), (800, 320208), (840, 304960), (896, 285900), (953, 268800), (960, 266840), (1050, 243968), (1120, 228720), (1200, 213472), (1280, 200130), (1344, 190600), (1400, 182976), (1536, 166775), (1600, 160104), (1680, 152480), (1792, 142950), (1906, 134400), (1920, 133420), (2100, 121984), (2240, 114360), (2400, 106736), (2560, 100065), (2688, 95300), (2800, 91488), (2859, 89600), (3200, 80052), (3360, 76240), (3584, 71475), (3812, 67200), (3840, 66710), (4200, 60992), (4480, 57180), (4765, 53760), (4800, 53368), (5376, 47650), (5600, 45744), (5718, 44800), (6400, 40026), (6671, 38400), (6720, 38120), (7624, 33600), (7680, 33355), (8400, 30496), (8960, 28590), (9530, 26880), (9600, 26684), (10752, 23825), (11200, 22872), (11436, 22400), (12800, 20013), (13342, 19200), (13440, 19060), (14295, 17920), (15248, 16800)]