87731920

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{10061}}^1$

素因数の和:10183

約数の個数: 40

約数和(自身を含む): 205868520

約数和(自身を除く): 118136600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 8720, 10061, 20122, 40244, 50305, 80488, 100610, 160976, 201220, 402440, 804880, 1096649, 2193298, 4386596, 5483245, 8773192, 10966490, 17546384, 21932980, 43865960, 87731920]

約数ペア:

[(1, 87731920), (2, 43865960), (4, 21932980), (5, 17546384), (8, 10966490), (10, 8773192), (16, 5483245), (20, 4386596), (40, 2193298), (80, 1096649), (109, 804880), (218, 402440), (436, 201220), (545, 160976), (872, 100610), (1090, 80488), (1744, 50305), (2180, 40244), (4360, 20122), (8720, 10061)]