20498688

素因数分解:

$2^8\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:101

約数の個数: 216

約数和(自身を含む): 71425536

約数和(自身を除く): 50926848

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 31, 32, 36, 41, 42, 48, 56, 62, 63, 64, 72, 82, 84, 93, 96, 112, 123, 124, 126, 128, 144, 164, 168, 186, 192, 217, 224, 246, 248, 252, 256, 279, 287, 288, 328, 336, 369, 372, 384, 434, 448, 492, 496, 504, 558, 574, 576, 651, 656, 672, 738, 744, 768, 861, 868, 896, 984, 992, 1008, 1116, 1148, 1152, 1271, 1302, 1312, 1344, 1476, 1488, 1722, 1736, 1792, 1953, 1968, 1984, 2016, 2232, 2296, 2304, 2542, 2583, 2604, 2624, 2688, 2952, 2976, 3444, 3472, 3813, 3906, 3936, 3968, 4032, 4464, 4592, 5084, 5166, 5208, 5248, 5376, 5904, 5952, 6888, 6944, 7626, 7812, 7872, 7936, 8064, 8897, 8928, 9184, 10168, 10332, 10416, 10496, 11439, 11808, 11904, 13776, 13888, 15252, 15624, 15744, 16128, 17794, 17856, 18368, 20336, 20664, 20832, 22878, 23616, 23808, 26691, 27552, 27776, 30504, 31248, 31488, 35588, 35712, 36736, 40672, 41328, 41664, 45756, 47232, 53382, 55104, 55552, 61008, 62496, 71176, 71424, 73472, 80073, 81344, 82656, 83328, 91512, 94464, 106764, 110208, 122016, 124992, 142352, 160146, 162688, 165312, 166656, 183024, 213528, 220416, 244032, 249984, 284704, 320292, 325376, 330624, 366048, 427056, 488064, 499968, 569408, 640584, 661248, 732096, 854112, 976128, 1138816, 1281168, 1464192, 1708224, 2277632, 2562336, 2928384, 3416448, 5124672, 6832896, 10249344, 20498688]

約数ペア:

[(1, 20498688), (2, 10249344), (3, 6832896), (4, 5124672), (6, 3416448), (7, 2928384), (8, 2562336), (9, 2277632), (12, 1708224), (14, 1464192), (16, 1281168), (18, 1138816), (21, 976128), (24, 854112), (28, 732096), (31, 661248), (32, 640584), (36, 569408), (41, 499968), (42, 488064), (48, 427056), (56, 366048), (62, 330624), (63, 325376), (64, 320292), (72, 284704), (82, 249984), (84, 244032), (93, 220416), (96, 213528), (112, 183024), (123, 166656), (124, 165312), (126, 162688), (128, 160146), (144, 142352), (164, 124992), (168, 122016), (186, 110208), (192, 106764), (217, 94464), (224, 91512), (246, 83328), (248, 82656), (252, 81344), (256, 80073), (279, 73472), (287, 71424), (288, 71176), (328, 62496), (336, 61008), (369, 55552), (372, 55104), (384, 53382), (434, 47232), (448, 45756), (492, 41664), (496, 41328), (504, 40672), (558, 36736), (574, 35712), (576, 35588), (651, 31488), (656, 31248), (672, 30504), (738, 27776), (744, 27552), (768, 26691), (861, 23808), (868, 23616), (896, 22878), (984, 20832), (992, 20664), (1008, 20336), (1116, 18368), (1148, 17856), (1152, 17794), (1271, 16128), (1302, 15744), (1312, 15624), (1344, 15252), (1476, 13888), (1488, 13776), (1722, 11904), (1736, 11808), (1792, 11439), (1953, 10496), (1968, 10416), (1984, 10332), (2016, 10168), (2232, 9184), (2296, 8928), (2304, 8897), (2542, 8064), (2583, 7936), (2604, 7872), (2624, 7812), (2688, 7626), (2952, 6944), (2976, 6888), (3444, 5952), (3472, 5904), (3813, 5376), (3906, 5248), (3936, 5208), (3968, 5166), (4032, 5084), (4464, 4592)]