28396004

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{431}}^1$

素因数の和:636

約数の個数: 48

約数和(自身を含む): 61641216

約数和(自身を除く): 33245212

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 181, 182, 362, 364, 431, 724, 862, 1267, 1724, 2353, 2534, 3017, 4706, 5068, 5603, 6034, 9412, 11206, 12068, 16471, 22412, 32942, 39221, 65884, 78011, 78442, 156022, 156884, 312044, 546077, 1014143, 1092154, 2028286, 2184308, 4056572, 7099001, 14198002, 28396004]

約数ペア:

[(1, 28396004), (2, 14198002), (4, 7099001), (7, 4056572), (13, 2184308), (14, 2028286), (26, 1092154), (28, 1014143), (52, 546077), (91, 312044), (181, 156884), (182, 156022), (362, 78442), (364, 78011), (431, 65884), (724, 39221), (862, 32942), (1267, 22412), (1724, 16471), (2353, 12068), (2534, 11206), (3017, 9412), (4706, 6034), (5068, 5603)]