81855840

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{419}}^1$

素因数の和:485

約数の個数: 192

約数和(自身を含む): 289578240

約数和(自身を除く): 207722400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 37, 40, 44, 48, 55, 60, 66, 74, 80, 88, 96, 110, 111, 120, 132, 148, 160, 165, 176, 185, 220, 222, 240, 264, 296, 330, 352, 370, 407, 419, 440, 444, 480, 528, 555, 592, 660, 740, 814, 838, 880, 888, 1056, 1110, 1184, 1221, 1257, 1320, 1480, 1628, 1676, 1760, 1776, 2035, 2095, 2220, 2442, 2514, 2640, 2960, 3256, 3352, 3552, 4070, 4190, 4440, 4609, 4884, 5028, 5280, 5920, 6105, 6285, 6512, 6704, 8140, 8380, 8880, 9218, 9768, 10056, 12210, 12570, 13024, 13408, 13827, 15503, 16280, 16760, 17760, 18436, 19536, 20112, 23045, 24420, 25140, 27654, 31006, 32560, 33520, 36872, 39072, 40224, 46090, 46509, 48840, 50280, 55308, 62012, 65120, 67040, 69135, 73744, 77515, 92180, 93018, 97680, 100560, 110616, 124024, 138270, 147488, 155030, 170533, 184360, 186036, 195360, 201120, 221232, 232545, 248048, 276540, 310060, 341066, 368720, 372072, 442464, 465090, 496096, 511599, 553080, 620120, 682132, 737440, 744144, 852665, 930180, 1023198, 1106160, 1240240, 1364264, 1488288, 1705330, 1860360, 2046396, 2212320, 2480480, 2557995, 2728528, 3410660, 3720720, 4092792, 5115990, 5457056, 6821320, 7441440, 8185584, 10231980, 13642640, 16371168, 20463960, 27285280, 40927920, 81855840]

約数ペア:

[(1, 81855840), (2, 40927920), (3, 27285280), (4, 20463960), (5, 16371168), (6, 13642640), (8, 10231980), (10, 8185584), (11, 7441440), (12, 6821320), (15, 5457056), (16, 5115990), (20, 4092792), (22, 3720720), (24, 3410660), (30, 2728528), (32, 2557995), (33, 2480480), (37, 2212320), (40, 2046396), (44, 1860360), (48, 1705330), (55, 1488288), (60, 1364264), (66, 1240240), (74, 1106160), (80, 1023198), (88, 930180), (96, 852665), (110, 744144), (111, 737440), (120, 682132), (132, 620120), (148, 553080), (160, 511599), (165, 496096), (176, 465090), (185, 442464), (220, 372072), (222, 368720), (240, 341066), (264, 310060), (296, 276540), (330, 248048), (352, 232545), (370, 221232), (407, 201120), (419, 195360), (440, 186036), (444, 184360), (480, 170533), (528, 155030), (555, 147488), (592, 138270), (660, 124024), (740, 110616), (814, 100560), (838, 97680), (880, 93018), (888, 92180), (1056, 77515), (1110, 73744), (1184, 69135), (1221, 67040), (1257, 65120), (1320, 62012), (1480, 55308), (1628, 50280), (1676, 48840), (1760, 46509), (1776, 46090), (2035, 40224), (2095, 39072), (2220, 36872), (2442, 33520), (2514, 32560), (2640, 31006), (2960, 27654), (3256, 25140), (3352, 24420), (3552, 23045), (4070, 20112), (4190, 19536), (4440, 18436), (4609, 17760), (4884, 16760), (5028, 16280), (5280, 15503), (5920, 13827), (6105, 13408), (6285, 13024), (6512, 12570), (6704, 12210), (8140, 10056), (8380, 9768), (8880, 9218)]