51222808

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{991}}^1$

素因数の和:1088

約数の個数: 64

約数和(自身を含む): 119992320

約数和(自身を除く): 68769512

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 71, 91, 104, 142, 182, 284, 364, 497, 568, 728, 923, 991, 994, 1846, 1982, 1988, 3692, 3964, 3976, 6461, 6937, 7384, 7928, 12883, 12922, 13874, 25766, 25844, 27748, 51532, 51688, 55496, 70361, 90181, 103064, 140722, 180362, 281444, 360724, 492527, 562888, 721448, 914693, 985054, 1829386, 1970108, 3658772, 3940216, 6402851, 7317544, 12805702, 25611404, 51222808]

約数ペア:

[(1, 51222808), (2, 25611404), (4, 12805702), (7, 7317544), (8, 6402851), (13, 3940216), (14, 3658772), (26, 1970108), (28, 1829386), (52, 985054), (56, 914693), (71, 721448), (91, 562888), (104, 492527), (142, 360724), (182, 281444), (284, 180362), (364, 140722), (497, 103064), (568, 90181), (728, 70361), (923, 55496), (991, 51688), (994, 51532), (1846, 27748), (1982, 25844), (1988, 25766), (3692, 13874), (3964, 12922), (3976, 12883), (6461, 7928), (6937, 7384)]