81005760

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2557}}^1$

素因数の和:2591

約数の個数: 168

約数和(自身を含む): 304074576

約数和(自身を除く): 223068816

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 32, 33, 36, 40, 44, 45, 48, 55, 60, 64, 66, 72, 80, 88, 90, 96, 99, 110, 120, 132, 144, 160, 165, 176, 180, 192, 198, 220, 240, 264, 288, 320, 330, 352, 360, 396, 440, 480, 495, 528, 576, 660, 704, 720, 792, 880, 960, 990, 1056, 1320, 1440, 1584, 1760, 1980, 2112, 2557, 2640, 2880, 3168, 3520, 3960, 5114, 5280, 6336, 7671, 7920, 10228, 10560, 12785, 15342, 15840, 20456, 23013, 25570, 28127, 30684, 31680, 38355, 40912, 46026, 51140, 56254, 61368, 76710, 81824, 84381, 92052, 102280, 112508, 115065, 122736, 140635, 153420, 163648, 168762, 184104, 204560, 225016, 230130, 245472, 253143, 281270, 306840, 337524, 368208, 409120, 421905, 450032, 460260, 490944, 506286, 562540, 613680, 675048, 736416, 818240, 843810, 900064, 920520, 1012572, 1125080, 1227360, 1265715, 1350096, 1472832, 1687620, 1800128, 1841040, 2025144, 2250160, 2454720, 2531430, 2700192, 3375240, 3682080, 4050288, 4500320, 5062860, 5400384, 6750480, 7364160, 8100576, 9000640, 10125720, 13500960, 16201152, 20251440, 27001920, 40502880, 81005760]

約数ペア:

[(1, 81005760), (2, 40502880), (3, 27001920), (4, 20251440), (5, 16201152), (6, 13500960), (8, 10125720), (9, 9000640), (10, 8100576), (11, 7364160), (12, 6750480), (15, 5400384), (16, 5062860), (18, 4500320), (20, 4050288), (22, 3682080), (24, 3375240), (30, 2700192), (32, 2531430), (33, 2454720), (36, 2250160), (40, 2025144), (44, 1841040), (45, 1800128), (48, 1687620), (55, 1472832), (60, 1350096), (64, 1265715), (66, 1227360), (72, 1125080), (80, 1012572), (88, 920520), (90, 900064), (96, 843810), (99, 818240), (110, 736416), (120, 675048), (132, 613680), (144, 562540), (160, 506286), (165, 490944), (176, 460260), (180, 450032), (192, 421905), (198, 409120), (220, 368208), (240, 337524), (264, 306840), (288, 281270), (320, 253143), (330, 245472), (352, 230130), (360, 225016), (396, 204560), (440, 184104), (480, 168762), (495, 163648), (528, 153420), (576, 140635), (660, 122736), (704, 115065), (720, 112508), (792, 102280), (880, 92052), (960, 84381), (990, 81824), (1056, 76710), (1320, 61368), (1440, 56254), (1584, 51140), (1760, 46026), (1980, 40912), (2112, 38355), (2557, 31680), (2640, 30684), (2880, 28127), (3168, 25570), (3520, 23013), (3960, 20456), (5114, 15840), (5280, 15342), (6336, 12785), (7671, 10560), (7920, 10228)]