28091115

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1549}}^1$

素因数の和:1604

約数の個数: 48

約数和(自身を含む): 54163200

約数和(自身を除く): 26072085

約数列:

[1, 3, 5, 9, 13, 15, 31, 39, 45, 65, 93, 117, 155, 195, 279, 403, 465, 585, 1209, 1395, 1549, 2015, 3627, 4647, 6045, 7745, 13941, 18135, 20137, 23235, 48019, 60411, 69705, 100685, 144057, 181233, 240095, 302055, 432171, 624247, 720285, 906165, 1872741, 2160855, 3121235, 5618223, 9363705, 28091115]

約数ペア:

[(1, 28091115), (3, 9363705), (5, 5618223), (9, 3121235), (13, 2160855), (15, 1872741), (31, 906165), (39, 720285), (45, 624247), (65, 432171), (93, 302055), (117, 240095), (155, 181233), (195, 144057), (279, 100685), (403, 69705), (465, 60411), (585, 48019), (1209, 23235), (1395, 20137), (1549, 18135), (2015, 13941), (3627, 7745), (4647, 6045)]