28157428

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{1811}}^1$

素因数の和:1864

約数の個数: 36

約数和(自身を含む): 55708128

約数和(自身を除く): 27550700

約数列:

[1, 2, 4, 13, 23, 26, 46, 52, 92, 169, 299, 338, 598, 676, 1196, 1811, 3622, 3887, 7244, 7774, 15548, 23543, 41653, 47086, 83306, 94172, 166612, 306059, 541489, 612118, 1082978, 1224236, 2165956, 7039357, 14078714, 28157428]

約数ペア:

[(1, 28157428), (2, 14078714), (4, 7039357), (13, 2165956), (23, 1224236), (26, 1082978), (46, 612118), (52, 541489), (92, 306059), (169, 166612), (299, 94172), (338, 83306), (598, 47086), (676, 41653), (1196, 23543), (1811, 15548), (3622, 7774), (3887, 7244)]