20494992

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{337}}^1$

素因数の和:536

約数の個数: 80

約数和(自身を含む): 61023872

約数和(自身を除く): 40528880

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 168, 181, 336, 337, 362, 543, 674, 724, 1011, 1086, 1267, 1348, 1448, 2022, 2172, 2359, 2534, 2696, 2896, 3801, 4044, 4344, 4718, 5068, 5392, 7077, 7602, 8088, 8688, 9436, 10136, 14154, 15204, 16176, 18872, 20272, 28308, 30408, 37744, 56616, 60816, 60997, 113232, 121994, 182991, 243988, 365982, 426979, 487976, 731964, 853958, 975952, 1280937, 1463928, 1707916, 2561874, 2927856, 3415832, 5123748, 6831664, 10247496, 20494992]

約数ペア:

[(1, 20494992), (2, 10247496), (3, 6831664), (4, 5123748), (6, 3415832), (7, 2927856), (8, 2561874), (12, 1707916), (14, 1463928), (16, 1280937), (21, 975952), (24, 853958), (28, 731964), (42, 487976), (48, 426979), (56, 365982), (84, 243988), (112, 182991), (168, 121994), (181, 113232), (336, 60997), (337, 60816), (362, 56616), (543, 37744), (674, 30408), (724, 28308), (1011, 20272), (1086, 18872), (1267, 16176), (1348, 15204), (1448, 14154), (2022, 10136), (2172, 9436), (2359, 8688), (2534, 8088), (2696, 7602), (2896, 7077), (3801, 5392), (4044, 5068), (4344, 4718)]