28400008

素因数分解:

$2^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{5573}}^1$

素因数の和:5606

約数の個数: 48

約数和(自身を含む): 66720780

約数和(自身を除く): 38320772

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, 5573, 11146, 22292, 39011, 44584, 72449, 78022, 144898, 156044, 273077, 289796, 312088, 507143, 546154, 579592, 1014286, 1092308, 2028572, 2184616, 3550001, 4057144, 7100002, 14200004, 28400008]

約数ペア:

[(1, 28400008), (2, 14200004), (4, 7100002), (7, 4057144), (8, 3550001), (13, 2184616), (14, 2028572), (26, 1092308), (28, 1014286), (49, 579592), (52, 546154), (56, 507143), (91, 312088), (98, 289796), (104, 273077), (182, 156044), (196, 144898), (364, 78022), (392, 72449), (637, 44584), (728, 39011), (1274, 22292), (2548, 11146), (5096, 5573)]