20512016

素因数分解:

$2^4\times 7^1\times {\mathrm{373}}^1\times {\mathrm{491}}^1$

素因数の和:879

約数の個数: 40

約数和(自身を含む): 45633984

約数和(自身を除く): 25121968

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 373, 491, 746, 982, 1492, 1964, 2611, 2984, 3437, 3928, 5222, 5968, 6874, 7856, 10444, 13748, 20888, 27496, 41776, 54992, 183143, 366286, 732572, 1282001, 1465144, 2564002, 2930288, 5128004, 10256008, 20512016]

約数ペア:

[(1, 20512016), (2, 10256008), (4, 5128004), (7, 2930288), (8, 2564002), (14, 1465144), (16, 1282001), (28, 732572), (56, 366286), (112, 183143), (373, 54992), (491, 41776), (746, 27496), (982, 20888), (1492, 13748), (1964, 10444), (2611, 7856), (2984, 6874), (3437, 5968), (3928, 5222)]