256456800

素因数分解:

$2^5\times 3^3\times 5^2\times {\mathrm{31}}^1\times {\mathrm{383}}^1$

素因数の和:443

約数の個数: 288

約数和(自身を含む): 959938560

約数和(自身を除く): 703481760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 27, 30, 31, 32, 36, 40, 45, 48, 50, 54, 60, 62, 72, 75, 80, 90, 93, 96, 100, 108, 120, 124, 135, 144, 150, 155, 160, 180, 186, 200, 216, 225, 240, 248, 270, 279, 288, 300, 310, 360, 372, 383, 400, 432, 450, 465, 480, 496, 540, 558, 600, 620, 675, 720, 744, 766, 775, 800, 837, 864, 900, 930, 992, 1080, 1116, 1149, 1200, 1240, 1350, 1395, 1440, 1488, 1532, 1550, 1674, 1800, 1860, 1915, 2160, 2232, 2298, 2325, 2400, 2480, 2700, 2790, 2976, 3064, 3100, 3348, 3447, 3600, 3720, 3830, 4185, 4320, 4464, 4596, 4650, 4960, 5400, 5580, 5745, 6128, 6200, 6696, 6894, 6975, 7200, 7440, 7660, 8370, 8928, 9192, 9300, 9575, 10341, 10800, 11160, 11490, 11873, 12256, 12400, 13392, 13788, 13950, 14880, 15320, 16740, 17235, 18384, 18600, 19150, 20682, 20925, 21600, 22320, 22980, 23746, 24800, 26784, 27576, 27900, 28725, 30640, 33480, 34470, 35619, 36768, 37200, 38300, 41364, 41850, 44640, 45960, 47492, 51705, 55152, 55800, 57450, 59365, 61280, 66960, 68940, 71238, 74400, 76600, 82728, 83700, 86175, 91920, 94984, 103410, 106857, 110304, 111600, 114900, 118730, 133920, 137880, 142476, 153200, 165456, 167400, 172350, 178095, 183840, 189968, 206820, 213714, 223200, 229800, 237460, 258525, 275760, 284952, 296825, 306400, 320571, 330912, 334800, 344700, 356190, 379936, 413640, 427428, 459600, 474920, 517050, 534285, 551520, 569904, 593650, 641142, 669600, 689400, 712380, 827280, 854856, 890475, 919200, 949840, 1034100, 1068570, 1139808, 1187300, 1282284, 1378800, 1424760, 1602855, 1654560, 1709712, 1780950, 1899680, 2068200, 2137140, 2374600, 2564568, 2671425, 2757600, 2849520, 3205710, 3419424, 3561900, 4136400, 4274280, 4749200, 5129136, 5342850, 5699040, 6411420, 7123800, 8014275, 8272800, 8548560, 9498400, 10258272, 10685700, 12822840, 14247600, 16028550, 17097120, 21371400, 25645680, 28495200, 32057100, 42742800, 51291360, 64114200, 85485600, 128228400, 256456800]

約数ペア:

[(1, 256456800), (2, 128228400), (3, 85485600), (4, 64114200), (5, 51291360), (6, 42742800), (8, 32057100), (9, 28495200), (10, 25645680), (12, 21371400), (15, 17097120), (16, 16028550), (18, 14247600), (20, 12822840), (24, 10685700), (25, 10258272), (27, 9498400), (30, 8548560), (31, 8272800), (32, 8014275), (36, 7123800), (40, 6411420), (45, 5699040), (48, 5342850), (50, 5129136), (54, 4749200), (60, 4274280), (62, 4136400), (72, 3561900), (75, 3419424), (80, 3205710), (90, 2849520), (93, 2757600), (96, 2671425), (100, 2564568), (108, 2374600), (120, 2137140), (124, 2068200), (135, 1899680), (144, 1780950), (150, 1709712), (155, 1654560), (160, 1602855), (180, 1424760), (186, 1378800), (200, 1282284), (216, 1187300), (225, 1139808), (240, 1068570), (248, 1034100), (270, 949840), (279, 919200), (288, 890475), (300, 854856), (310, 827280), (360, 712380), (372, 689400), (383, 669600), (400, 641142), (432, 593650), (450, 569904), (465, 551520), (480, 534285), (496, 517050), (540, 474920), (558, 459600), (600, 427428), (620, 413640), (675, 379936), (720, 356190), (744, 344700), (766, 334800), (775, 330912), (800, 320571), (837, 306400), (864, 296825), (900, 284952), (930, 275760), (992, 258525), (1080, 237460), (1116, 229800), (1149, 223200), (1200, 213714), (1240, 206820), (1350, 189968), (1395, 183840), (1440, 178095), (1488, 172350), (1532, 167400), (1550, 165456), (1674, 153200), (1800, 142476), (1860, 137880), (1915, 133920), (2160, 118730), (2232, 114900), (2298, 111600), (2325, 110304), (2400, 106857), (2480, 103410), (2700, 94984), (2790, 91920), (2976, 86175), (3064, 83700), (3100, 82728), (3348, 76600), (3447, 74400), (3600, 71238), (3720, 68940), (3830, 66960), (4185, 61280), (4320, 59365), (4464, 57450), (4596, 55800), (4650, 55152), (4960, 51705), (5400, 47492), (5580, 45960), (5745, 44640), (6128, 41850), (6200, 41364), (6696, 38300), (6894, 37200), (6975, 36768), (7200, 35619), (7440, 34470), (7660, 33480), (8370, 30640), (8928, 28725), (9192, 27900), (9300, 27576), (9575, 26784), (10341, 24800), (10800, 23746), (11160, 22980), (11490, 22320), (11873, 21600), (12256, 20925), (12400, 20682), (13392, 19150), (13788, 18600), (13950, 18384), (14880, 17235), (15320, 16740)]