256972800

素因数分解:

$2^{11}\times 3^1\times 5^2\times 7^1\times {\mathrm{239}}^1$

素因数の和:281

約数の個数: 288

約数和(自身を含む): 974937600

約数和(自身を除く): 717964800

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, 239, 240, 256, 280, 300, 320, 336, 350, 384, 400, 420, 448, 478, 480, 512, 525, 560, 600, 640, 672, 700, 717, 768, 800, 840, 896, 956, 960, 1024, 1050, 1120, 1195, 1200, 1280, 1344, 1400, 1434, 1536, 1600, 1673, 1680, 1792, 1912, 1920, 2048, 2100, 2240, 2390, 2400, 2560, 2688, 2800, 2868, 3072, 3200, 3346, 3360, 3584, 3585, 3824, 3840, 4200, 4480, 4780, 4800, 5019, 5120, 5376, 5600, 5736, 5975, 6144, 6400, 6692, 6720, 7168, 7170, 7648, 7680, 8365, 8400, 8960, 9560, 9600, 10038, 10240, 10752, 11200, 11472, 11950, 12800, 13384, 13440, 14336, 14340, 15296, 15360, 16730, 16800, 17920, 17925, 19120, 19200, 20076, 21504, 22400, 22944, 23900, 25095, 25600, 26768, 26880, 28680, 30592, 30720, 33460, 33600, 35840, 35850, 38240, 38400, 40152, 41825, 43008, 44800, 45888, 47800, 50190, 51200, 53536, 53760, 57360, 61184, 66920, 67200, 71680, 71700, 76480, 76800, 80304, 83650, 89600, 91776, 95600, 100380, 107072, 107520, 114720, 122368, 125475, 133840, 134400, 143400, 152960, 153600, 160608, 167300, 179200, 183552, 191200, 200760, 214144, 215040, 229440, 244736, 250950, 267680, 268800, 286800, 305920, 321216, 334600, 358400, 367104, 382400, 401520, 428288, 458880, 489472, 501900, 535360, 537600, 573600, 611840, 642432, 669200, 734208, 764800, 803040, 856576, 917760, 1003800, 1070720, 1075200, 1147200, 1223680, 1284864, 1338400, 1468416, 1529600, 1606080, 1713152, 1835520, 2007600, 2141440, 2294400, 2447360, 2569728, 2676800, 3059200, 3212160, 3426304, 3671040, 4015200, 4282880, 4588800, 5139456, 5353600, 6118400, 6424320, 7342080, 8030400, 8565760, 9177600, 10278912, 10707200, 12236800, 12848640, 16060800, 17131520, 18355200, 21414400, 25697280, 32121600, 36710400, 42828800, 51394560, 64243200, 85657600, 128486400, 256972800]

約数ペア:

[(1, 256972800), (2, 128486400), (3, 85657600), (4, 64243200), (5, 51394560), (6, 42828800), (7, 36710400), (8, 32121600), (10, 25697280), (12, 21414400), (14, 18355200), (15, 17131520), (16, 16060800), (20, 12848640), (21, 12236800), (24, 10707200), (25, 10278912), (28, 9177600), (30, 8565760), (32, 8030400), (35, 7342080), (40, 6424320), (42, 6118400), (48, 5353600), (50, 5139456), (56, 4588800), (60, 4282880), (64, 4015200), (70, 3671040), (75, 3426304), (80, 3212160), (84, 3059200), (96, 2676800), (100, 2569728), (105, 2447360), (112, 2294400), (120, 2141440), (128, 2007600), (140, 1835520), (150, 1713152), (160, 1606080), (168, 1529600), (175, 1468416), (192, 1338400), (200, 1284864), (210, 1223680), (224, 1147200), (239, 1075200), (240, 1070720), (256, 1003800), (280, 917760), (300, 856576), (320, 803040), (336, 764800), (350, 734208), (384, 669200), (400, 642432), (420, 611840), (448, 573600), (478, 537600), (480, 535360), (512, 501900), (525, 489472), (560, 458880), (600, 428288), (640, 401520), (672, 382400), (700, 367104), (717, 358400), (768, 334600), (800, 321216), (840, 305920), (896, 286800), (956, 268800), (960, 267680), (1024, 250950), (1050, 244736), (1120, 229440), (1195, 215040), (1200, 214144), (1280, 200760), (1344, 191200), (1400, 183552), (1434, 179200), (1536, 167300), (1600, 160608), (1673, 153600), (1680, 152960), (1792, 143400), (1912, 134400), (1920, 133840), (2048, 125475), (2100, 122368), (2240, 114720), (2390, 107520), (2400, 107072), (2560, 100380), (2688, 95600), (2800, 91776), (2868, 89600), (3072, 83650), (3200, 80304), (3346, 76800), (3360, 76480), (3584, 71700), (3585, 71680), (3824, 67200), (3840, 66920), (4200, 61184), (4480, 57360), (4780, 53760), (4800, 53536), (5019, 51200), (5120, 50190), (5376, 47800), (5600, 45888), (5736, 44800), (5975, 43008), (6144, 41825), (6400, 40152), (6692, 38400), (6720, 38240), (7168, 35850), (7170, 35840), (7648, 33600), (7680, 33460), (8365, 30720), (8400, 30592), (8960, 28680), (9560, 26880), (9600, 26768), (10038, 25600), (10240, 25095), (10752, 23900), (11200, 22944), (11472, 22400), (11950, 21504), (12800, 20076), (13384, 19200), (13440, 19120), (14336, 17925), (14340, 17920), (15296, 16800), (15360, 16730)]