28366160

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{3253}}^1$

素因数の和:3375

約数の個数: 40

約数和(自身を含む): 66576840

約数和(自身を除く): 38210680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 3253, 4360, 6506, 8720, 13012, 16265, 26024, 32530, 52048, 65060, 130120, 260240, 354577, 709154, 1418308, 1772885, 2836616, 3545770, 5673232, 7091540, 14183080, 28366160]

約数ペア:

[(1, 28366160), (2, 14183080), (4, 7091540), (5, 5673232), (8, 3545770), (10, 2836616), (16, 1772885), (20, 1418308), (40, 709154), (80, 354577), (109, 260240), (218, 130120), (436, 65060), (545, 52048), (872, 32530), (1090, 26024), (1744, 16265), (2180, 13012), (3253, 8720), (4360, 6506)]