256321800

素因数分解:

$2^3\times 3^3\times 5^2\times 7^1\times {\mathrm{6781}}^1$

素因数の和:6813

約数の個数: 192

約数和(自身を含む): 1009161600

約数和(自身を除く): 752839800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 25, 27, 28, 30, 35, 36, 40, 42, 45, 50, 54, 56, 60, 63, 70, 72, 75, 84, 90, 100, 105, 108, 120, 126, 135, 140, 150, 168, 175, 180, 189, 200, 210, 216, 225, 252, 270, 280, 300, 315, 350, 360, 378, 420, 450, 504, 525, 540, 600, 630, 675, 700, 756, 840, 900, 945, 1050, 1080, 1260, 1350, 1400, 1512, 1575, 1800, 1890, 2100, 2520, 2700, 3150, 3780, 4200, 4725, 5400, 6300, 6781, 7560, 9450, 12600, 13562, 18900, 20343, 27124, 33905, 37800, 40686, 47467, 54248, 61029, 67810, 81372, 94934, 101715, 122058, 135620, 142401, 162744, 169525, 183087, 189868, 203430, 237335, 244116, 271240, 284802, 305145, 339050, 366174, 379736, 406860, 427203, 474670, 488232, 508575, 569604, 610290, 678100, 712005, 732348, 813720, 854406, 915435, 949340, 1017150, 1139208, 1186675, 1220580, 1281609, 1356200, 1424010, 1464696, 1525725, 1708812, 1830870, 1898680, 2034300, 2136015, 2373350, 2441160, 2563218, 2848020, 3051450, 3417624, 3560025, 3661740, 4068600, 4272030, 4577175, 4746700, 5126436, 5696040, 6102900, 6408045, 7120050, 7323480, 8544060, 9154350, 9493400, 10252872, 10680075, 12205800, 12816090, 14240100, 17088120, 18308700, 21360150, 25632180, 28480200, 32040225, 36617400, 42720300, 51264360, 64080450, 85440600, 128160900, 256321800]

約数ペア:

[(1, 256321800), (2, 128160900), (3, 85440600), (4, 64080450), (5, 51264360), (6, 42720300), (7, 36617400), (8, 32040225), (9, 28480200), (10, 25632180), (12, 21360150), (14, 18308700), (15, 17088120), (18, 14240100), (20, 12816090), (21, 12205800), (24, 10680075), (25, 10252872), (27, 9493400), (28, 9154350), (30, 8544060), (35, 7323480), (36, 7120050), (40, 6408045), (42, 6102900), (45, 5696040), (50, 5126436), (54, 4746700), (56, 4577175), (60, 4272030), (63, 4068600), (70, 3661740), (72, 3560025), (75, 3417624), (84, 3051450), (90, 2848020), (100, 2563218), (105, 2441160), (108, 2373350), (120, 2136015), (126, 2034300), (135, 1898680), (140, 1830870), (150, 1708812), (168, 1525725), (175, 1464696), (180, 1424010), (189, 1356200), (200, 1281609), (210, 1220580), (216, 1186675), (225, 1139208), (252, 1017150), (270, 949340), (280, 915435), (300, 854406), (315, 813720), (350, 732348), (360, 712005), (378, 678100), (420, 610290), (450, 569604), (504, 508575), (525, 488232), (540, 474670), (600, 427203), (630, 406860), (675, 379736), (700, 366174), (756, 339050), (840, 305145), (900, 284802), (945, 271240), (1050, 244116), (1080, 237335), (1260, 203430), (1350, 189868), (1400, 183087), (1512, 169525), (1575, 162744), (1800, 142401), (1890, 135620), (2100, 122058), (2520, 101715), (2700, 94934), (3150, 81372), (3780, 67810), (4200, 61029), (4725, 54248), (5400, 47467), (6300, 40686), (6781, 37800), (7560, 33905), (9450, 27124), (12600, 20343), (13562, 18900)]