256996800

素因数分解:

$2^6\times 3^5\times 5^2\times {\mathrm{661}}^1$

素因数の和:698

約数の個数: 252

約数和(自身を含む): 948691016

約数和(自身を除く): 691694216

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 27, 30, 32, 36, 40, 45, 48, 50, 54, 60, 64, 72, 75, 80, 81, 90, 96, 100, 108, 120, 135, 144, 150, 160, 162, 180, 192, 200, 216, 225, 240, 243, 270, 288, 300, 320, 324, 360, 400, 405, 432, 450, 480, 486, 540, 576, 600, 648, 661, 675, 720, 800, 810, 864, 900, 960, 972, 1080, 1200, 1215, 1296, 1322, 1350, 1440, 1600, 1620, 1728, 1800, 1944, 1983, 2025, 2160, 2400, 2430, 2592, 2644, 2700, 2880, 3240, 3305, 3600, 3888, 3966, 4050, 4320, 4800, 4860, 5184, 5288, 5400, 5949, 6075, 6480, 6610, 7200, 7776, 7932, 8100, 8640, 9720, 9915, 10576, 10800, 11898, 12150, 12960, 13220, 14400, 15552, 15864, 16200, 16525, 17847, 19440, 19830, 21152, 21600, 23796, 24300, 25920, 26440, 29745, 31728, 32400, 33050, 35694, 38880, 39660, 42304, 43200, 47592, 48600, 49575, 52880, 53541, 59490, 63456, 64800, 66100, 71388, 77760, 79320, 89235, 95184, 97200, 99150, 105760, 107082, 118980, 126912, 129600, 132200, 142776, 148725, 158640, 160623, 178470, 190368, 194400, 198300, 211520, 214164, 237960, 264400, 267705, 285552, 297450, 317280, 321246, 356940, 380736, 388800, 396600, 428328, 446175, 475920, 528800, 535410, 571104, 594900, 634560, 642492, 713880, 793200, 803115, 856656, 892350, 951840, 1057600, 1070820, 1142208, 1189800, 1284984, 1338525, 1427760, 1586400, 1606230, 1713312, 1784700, 1903680, 2141640, 2379600, 2569968, 2677050, 2855520, 3172800, 3212460, 3426624, 3569400, 4015575, 4283280, 4759200, 5139936, 5354100, 5711040, 6424920, 7138800, 8031150, 8566560, 9518400, 10279872, 10708200, 12849840, 14277600, 16062300, 17133120, 21416400, 25699680, 28555200, 32124600, 42832800, 51399360, 64249200, 85665600, 128498400, 256996800]

約数ペア:

[(1, 256996800), (2, 128498400), (3, 85665600), (4, 64249200), (5, 51399360), (6, 42832800), (8, 32124600), (9, 28555200), (10, 25699680), (12, 21416400), (15, 17133120), (16, 16062300), (18, 14277600), (20, 12849840), (24, 10708200), (25, 10279872), (27, 9518400), (30, 8566560), (32, 8031150), (36, 7138800), (40, 6424920), (45, 5711040), (48, 5354100), (50, 5139936), (54, 4759200), (60, 4283280), (64, 4015575), (72, 3569400), (75, 3426624), (80, 3212460), (81, 3172800), (90, 2855520), (96, 2677050), (100, 2569968), (108, 2379600), (120, 2141640), (135, 1903680), (144, 1784700), (150, 1713312), (160, 1606230), (162, 1586400), (180, 1427760), (192, 1338525), (200, 1284984), (216, 1189800), (225, 1142208), (240, 1070820), (243, 1057600), (270, 951840), (288, 892350), (300, 856656), (320, 803115), (324, 793200), (360, 713880), (400, 642492), (405, 634560), (432, 594900), (450, 571104), (480, 535410), (486, 528800), (540, 475920), (576, 446175), (600, 428328), (648, 396600), (661, 388800), (675, 380736), (720, 356940), (800, 321246), (810, 317280), (864, 297450), (900, 285552), (960, 267705), (972, 264400), (1080, 237960), (1200, 214164), (1215, 211520), (1296, 198300), (1322, 194400), (1350, 190368), (1440, 178470), (1600, 160623), (1620, 158640), (1728, 148725), (1800, 142776), (1944, 132200), (1983, 129600), (2025, 126912), (2160, 118980), (2400, 107082), (2430, 105760), (2592, 99150), (2644, 97200), (2700, 95184), (2880, 89235), (3240, 79320), (3305, 77760), (3600, 71388), (3888, 66100), (3966, 64800), (4050, 63456), (4320, 59490), (4800, 53541), (4860, 52880), (5184, 49575), (5288, 48600), (5400, 47592), (5949, 43200), (6075, 42304), (6480, 39660), (6610, 38880), (7200, 35694), (7776, 33050), (7932, 32400), (8100, 31728), (8640, 29745), (9720, 26440), (9915, 25920), (10576, 24300), (10800, 23796), (11898, 21600), (12150, 21152), (12960, 19830), (13220, 19440), (14400, 17847), (15552, 16525), (15864, 16200)]