20548080

素因数分解:

$2^4\times 3^5\times 5^1\times 7^1\times {\mathrm{151}}^1$

素因数の和:186

約数の個数: 240

約数和(自身を含む): 82328064

約数和(自身を除く): 61779984

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 81, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 151, 162, 168, 180, 189, 210, 216, 240, 243, 252, 270, 280, 302, 315, 324, 336, 360, 378, 405, 420, 432, 453, 486, 504, 540, 560, 567, 604, 630, 648, 720, 755, 756, 810, 840, 906, 945, 972, 1008, 1057, 1080, 1134, 1208, 1215, 1260, 1296, 1359, 1510, 1512, 1620, 1680, 1701, 1812, 1890, 1944, 2114, 2160, 2265, 2268, 2416, 2430, 2520, 2718, 2835, 3020, 3024, 3171, 3240, 3402, 3624, 3780, 3888, 4077, 4228, 4530, 4536, 4860, 5040, 5285, 5436, 5670, 6040, 6342, 6480, 6795, 6804, 7248, 7560, 8154, 8456, 8505, 9060, 9072, 9513, 9720, 10570, 10872, 11340, 12080, 12231, 12684, 13590, 13608, 15120, 15855, 16308, 16912, 17010, 18120, 19026, 19440, 20385, 21140, 21744, 22680, 24462, 25368, 27180, 27216, 28539, 31710, 32616, 34020, 36240, 36693, 38052, 40770, 42280, 45360, 47565, 48924, 50736, 54360, 57078, 61155, 63420, 65232, 68040, 73386, 76104, 81540, 84560, 85617, 95130, 97848, 108720, 114156, 122310, 126840, 136080, 142695, 146772, 152208, 163080, 171234, 183465, 190260, 195696, 228312, 244620, 253680, 256851, 285390, 293544, 326160, 342468, 366930, 380520, 428085, 456624, 489240, 513702, 570780, 587088, 684936, 733860, 761040, 856170, 978480, 1027404, 1141560, 1284255, 1369872, 1467720, 1712340, 2054808, 2283120, 2568510, 2935440, 3424680, 4109616, 5137020, 6849360, 10274040, 20548080]

約数ペア:

[(1, 20548080), (2, 10274040), (3, 6849360), (4, 5137020), (5, 4109616), (6, 3424680), (7, 2935440), (8, 2568510), (9, 2283120), (10, 2054808), (12, 1712340), (14, 1467720), (15, 1369872), (16, 1284255), (18, 1141560), (20, 1027404), (21, 978480), (24, 856170), (27, 761040), (28, 733860), (30, 684936), (35, 587088), (36, 570780), (40, 513702), (42, 489240), (45, 456624), (48, 428085), (54, 380520), (56, 366930), (60, 342468), (63, 326160), (70, 293544), (72, 285390), (80, 256851), (81, 253680), (84, 244620), (90, 228312), (105, 195696), (108, 190260), (112, 183465), (120, 171234), (126, 163080), (135, 152208), (140, 146772), (144, 142695), (151, 136080), (162, 126840), (168, 122310), (180, 114156), (189, 108720), (210, 97848), (216, 95130), (240, 85617), (243, 84560), (252, 81540), (270, 76104), (280, 73386), (302, 68040), (315, 65232), (324, 63420), (336, 61155), (360, 57078), (378, 54360), (405, 50736), (420, 48924), (432, 47565), (453, 45360), (486, 42280), (504, 40770), (540, 38052), (560, 36693), (567, 36240), (604, 34020), (630, 32616), (648, 31710), (720, 28539), (755, 27216), (756, 27180), (810, 25368), (840, 24462), (906, 22680), (945, 21744), (972, 21140), (1008, 20385), (1057, 19440), (1080, 19026), (1134, 18120), (1208, 17010), (1215, 16912), (1260, 16308), (1296, 15855), (1359, 15120), (1510, 13608), (1512, 13590), (1620, 12684), (1680, 12231), (1701, 12080), (1812, 11340), (1890, 10872), (1944, 10570), (2114, 9720), (2160, 9513), (2265, 9072), (2268, 9060), (2416, 8505), (2430, 8456), (2520, 8154), (2718, 7560), (2835, 7248), (3020, 6804), (3024, 6795), (3171, 6480), (3240, 6342), (3402, 6040), (3624, 5670), (3780, 5436), (3888, 5285), (4077, 5040), (4228, 4860), (4530, 4536)]