20738256

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1$

素因数の和:241

約数の個数: 160

約数和(自身を含む): 69328896

約数和(自身を除く): 48590640

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 16, 21, 22, 24, 28, 31, 33, 42, 44, 48, 56, 62, 66, 77, 84, 88, 93, 112, 124, 132, 154, 168, 176, 181, 186, 217, 231, 248, 264, 308, 336, 341, 362, 372, 434, 462, 496, 528, 543, 616, 651, 682, 724, 744, 868, 924, 1023, 1086, 1232, 1267, 1302, 1364, 1448, 1488, 1736, 1848, 1991, 2046, 2172, 2387, 2534, 2604, 2728, 2896, 3472, 3696, 3801, 3982, 4092, 4344, 4774, 5068, 5208, 5456, 5611, 5973, 7161, 7602, 7964, 8184, 8688, 9548, 10136, 10416, 11222, 11946, 13937, 14322, 15204, 15928, 16368, 16833, 19096, 20272, 22444, 23892, 27874, 28644, 30408, 31856, 33666, 38192, 39277, 41811, 44888, 47784, 55748, 57288, 60816, 61721, 67332, 78554, 83622, 89776, 95568, 111496, 114576, 117831, 123442, 134664, 157108, 167244, 185163, 222992, 235662, 246884, 269328, 314216, 334488, 370326, 432047, 471324, 493768, 628432, 668976, 740652, 864094, 942648, 987536, 1296141, 1481304, 1728188, 1885296, 2592282, 2962608, 3456376, 5184564, 6912752, 10369128, 20738256]

約数ペア:

[(1, 20738256), (2, 10369128), (3, 6912752), (4, 5184564), (6, 3456376), (7, 2962608), (8, 2592282), (11, 1885296), (12, 1728188), (14, 1481304), (16, 1296141), (21, 987536), (22, 942648), (24, 864094), (28, 740652), (31, 668976), (33, 628432), (42, 493768), (44, 471324), (48, 432047), (56, 370326), (62, 334488), (66, 314216), (77, 269328), (84, 246884), (88, 235662), (93, 222992), (112, 185163), (124, 167244), (132, 157108), (154, 134664), (168, 123442), (176, 117831), (181, 114576), (186, 111496), (217, 95568), (231, 89776), (248, 83622), (264, 78554), (308, 67332), (336, 61721), (341, 60816), (362, 57288), (372, 55748), (434, 47784), (462, 44888), (496, 41811), (528, 39277), (543, 38192), (616, 33666), (651, 31856), (682, 30408), (724, 28644), (744, 27874), (868, 23892), (924, 22444), (1023, 20272), (1086, 19096), (1232, 16833), (1267, 16368), (1302, 15928), (1364, 15204), (1448, 14322), (1488, 13937), (1736, 11946), (1848, 11222), (1991, 10416), (2046, 10136), (2172, 9548), (2387, 8688), (2534, 8184), (2604, 7964), (2728, 7602), (2896, 7161), (3472, 5973), (3696, 5611), (3801, 5456), (3982, 5208), (4092, 5068), (4344, 4774)]