81981984

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{121997}}^1$

素因数の和:122017

約数の個数: 48

約数和(自身を含む): 245947968

約数和(自身を除く): 163965984

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 168, 224, 336, 672, 121997, 243994, 365991, 487988, 731982, 853979, 975976, 1463964, 1707958, 1951952, 2561937, 2927928, 3415916, 3903904, 5123874, 5855856, 6831832, 10247748, 11711712, 13663664, 20495496, 27327328, 40990992, 81981984]

約数ペア:

[(1, 81981984), (2, 40990992), (3, 27327328), (4, 20495496), (6, 13663664), (7, 11711712), (8, 10247748), (12, 6831832), (14, 5855856), (16, 5123874), (21, 3903904), (24, 3415916), (28, 2927928), (32, 2561937), (42, 1951952), (48, 1707958), (56, 1463964), (84, 975976), (96, 853979), (112, 731982), (168, 487988), (224, 365991), (336, 243994), (672, 121997)]