20102880

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1$

素因数の和:249

約数の個数: 192

約数和(自身を含む): 75091968

約数和(自身を除く): 54989088

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 31, 32, 35, 40, 42, 48, 56, 60, 62, 70, 80, 84, 93, 96, 105, 112, 120, 124, 140, 155, 160, 168, 186, 193, 210, 217, 224, 240, 248, 280, 310, 336, 372, 386, 420, 434, 465, 480, 496, 560, 579, 620, 651, 672, 744, 772, 840, 868, 930, 965, 992, 1085, 1120, 1158, 1240, 1302, 1351, 1488, 1544, 1680, 1736, 1860, 1930, 2170, 2316, 2480, 2604, 2702, 2895, 2976, 3088, 3255, 3360, 3472, 3720, 3860, 4053, 4340, 4632, 4960, 5208, 5404, 5790, 5983, 6176, 6510, 6755, 6944, 7440, 7720, 8106, 8680, 9264, 10416, 10808, 11580, 11966, 13020, 13510, 14880, 15440, 16212, 17360, 17949, 18528, 20265, 20832, 21616, 23160, 23932, 26040, 27020, 29915, 30880, 32424, 34720, 35898, 40530, 41881, 43232, 46320, 47864, 52080, 54040, 59830, 64848, 71796, 81060, 83762, 89745, 92640, 95728, 104160, 108080, 119660, 125643, 129696, 143592, 162120, 167524, 179490, 191456, 209405, 216160, 239320, 251286, 287184, 324240, 335048, 358980, 418810, 478640, 502572, 574368, 628215, 648480, 670096, 717960, 837620, 957280, 1005144, 1256430, 1340192, 1435920, 1675240, 2010288, 2512860, 2871840, 3350480, 4020576, 5025720, 6700960, 10051440, 20102880]

約数ペア:

[(1, 20102880), (2, 10051440), (3, 6700960), (4, 5025720), (5, 4020576), (6, 3350480), (7, 2871840), (8, 2512860), (10, 2010288), (12, 1675240), (14, 1435920), (15, 1340192), (16, 1256430), (20, 1005144), (21, 957280), (24, 837620), (28, 717960), (30, 670096), (31, 648480), (32, 628215), (35, 574368), (40, 502572), (42, 478640), (48, 418810), (56, 358980), (60, 335048), (62, 324240), (70, 287184), (80, 251286), (84, 239320), (93, 216160), (96, 209405), (105, 191456), (112, 179490), (120, 167524), (124, 162120), (140, 143592), (155, 129696), (160, 125643), (168, 119660), (186, 108080), (193, 104160), (210, 95728), (217, 92640), (224, 89745), (240, 83762), (248, 81060), (280, 71796), (310, 64848), (336, 59830), (372, 54040), (386, 52080), (420, 47864), (434, 46320), (465, 43232), (480, 41881), (496, 40530), (560, 35898), (579, 34720), (620, 32424), (651, 30880), (672, 29915), (744, 27020), (772, 26040), (840, 23932), (868, 23160), (930, 21616), (965, 20832), (992, 20265), (1085, 18528), (1120, 17949), (1158, 17360), (1240, 16212), (1302, 15440), (1351, 14880), (1488, 13510), (1544, 13020), (1680, 11966), (1736, 11580), (1860, 10808), (1930, 10416), (2170, 9264), (2316, 8680), (2480, 8106), (2604, 7720), (2702, 7440), (2895, 6944), (2976, 6755), (3088, 6510), (3255, 6176), (3360, 5983), (3472, 5790), (3720, 5404), (3860, 5208), (4053, 4960), (4340, 4632)]