28807688

素因数分解:

$2^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{5653}}^1$

素因数の和:5686

約数の個数: 48

約数和(自身を含む): 67678380

約数和(自身を除く): 38870692

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 49, 52, 56, 91, 98, 104, 182, 196, 364, 392, 637, 728, 1274, 2548, 5096, 5653, 11306, 22612, 39571, 45224, 73489, 79142, 146978, 158284, 276997, 293956, 316568, 514423, 553994, 587912, 1028846, 1107988, 2057692, 2215976, 3600961, 4115384, 7201922, 14403844, 28807688]

約数ペア:

[(1, 28807688), (2, 14403844), (4, 7201922), (7, 4115384), (8, 3600961), (13, 2215976), (14, 2057692), (26, 1107988), (28, 1028846), (49, 587912), (52, 553994), (56, 514423), (91, 316568), (98, 293956), (104, 276997), (182, 158284), (196, 146978), (364, 79142), (392, 73489), (637, 45224), (728, 39571), (1274, 22612), (2548, 11306), (5096, 5653)]