20557152

素因数分解:

$2^5\times 3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1$

素因数の和:143

約数の個数: 240

約数和(自身を含む): 76108032

約数和(自身を除く): 55550880

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 14, 16, 18, 21, 22, 24, 27, 28, 32, 33, 36, 42, 44, 48, 54, 56, 63, 66, 72, 77, 81, 84, 88, 96, 99, 103, 108, 112, 126, 132, 144, 154, 162, 168, 176, 189, 198, 206, 216, 224, 231, 252, 264, 288, 297, 308, 309, 324, 336, 352, 378, 396, 412, 432, 462, 504, 528, 567, 594, 616, 618, 648, 672, 693, 721, 756, 792, 824, 864, 891, 924, 927, 1008, 1056, 1133, 1134, 1188, 1232, 1236, 1296, 1386, 1442, 1512, 1584, 1648, 1782, 1848, 1854, 2016, 2079, 2163, 2266, 2268, 2376, 2464, 2472, 2592, 2772, 2781, 2884, 3024, 3168, 3296, 3399, 3564, 3696, 3708, 4158, 4326, 4532, 4536, 4752, 4944, 5544, 5562, 5768, 6048, 6237, 6489, 6798, 7128, 7392, 7416, 7931, 8316, 8343, 8652, 9064, 9072, 9504, 9888, 10197, 11088, 11124, 11536, 12474, 12978, 13596, 14256, 14832, 15862, 16632, 16686, 17304, 18128, 18144, 19467, 20394, 22176, 22248, 23072, 23793, 24948, 25956, 27192, 28512, 29664, 30591, 31724, 33264, 33372, 34608, 36256, 38934, 40788, 44496, 47586, 49896, 51912, 54384, 58401, 61182, 63448, 66528, 66744, 69216, 71379, 77868, 81576, 88992, 91773, 95172, 99792, 103824, 108768, 116802, 122364, 126896, 133488, 142758, 155736, 163152, 183546, 190344, 199584, 207648, 214137, 233604, 244728, 253792, 266976, 285516, 311472, 326304, 367092, 380688, 428274, 467208, 489456, 571032, 622944, 642411, 734184, 761376, 856548, 934416, 978912, 1142064, 1284822, 1468368, 1713096, 1868832, 2284128, 2569644, 2936736, 3426192, 5139288, 6852384, 10278576, 20557152]

約数ペア:

[(1, 20557152), (2, 10278576), (3, 6852384), (4, 5139288), (6, 3426192), (7, 2936736), (8, 2569644), (9, 2284128), (11, 1868832), (12, 1713096), (14, 1468368), (16, 1284822), (18, 1142064), (21, 978912), (22, 934416), (24, 856548), (27, 761376), (28, 734184), (32, 642411), (33, 622944), (36, 571032), (42, 489456), (44, 467208), (48, 428274), (54, 380688), (56, 367092), (63, 326304), (66, 311472), (72, 285516), (77, 266976), (81, 253792), (84, 244728), (88, 233604), (96, 214137), (99, 207648), (103, 199584), (108, 190344), (112, 183546), (126, 163152), (132, 155736), (144, 142758), (154, 133488), (162, 126896), (168, 122364), (176, 116802), (189, 108768), (198, 103824), (206, 99792), (216, 95172), (224, 91773), (231, 88992), (252, 81576), (264, 77868), (288, 71379), (297, 69216), (308, 66744), (309, 66528), (324, 63448), (336, 61182), (352, 58401), (378, 54384), (396, 51912), (412, 49896), (432, 47586), (462, 44496), (504, 40788), (528, 38934), (567, 36256), (594, 34608), (616, 33372), (618, 33264), (648, 31724), (672, 30591), (693, 29664), (721, 28512), (756, 27192), (792, 25956), (824, 24948), (864, 23793), (891, 23072), (924, 22248), (927, 22176), (1008, 20394), (1056, 19467), (1133, 18144), (1134, 18128), (1188, 17304), (1232, 16686), (1236, 16632), (1296, 15862), (1386, 14832), (1442, 14256), (1512, 13596), (1584, 12978), (1648, 12474), (1782, 11536), (1848, 11124), (1854, 11088), (2016, 10197), (2079, 9888), (2163, 9504), (2266, 9072), (2268, 9064), (2376, 8652), (2464, 8343), (2472, 8316), (2592, 7931), (2772, 7416), (2781, 7392), (2884, 7128), (3024, 6798), (3168, 6489), (3296, 6237), (3399, 6048), (3564, 5768), (3696, 5562), (3708, 5544), (4158, 4944), (4326, 4752), (4532, 4536)]