87261040

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{10007}}^1$

素因数の和:10129

約数の個数: 40

約数和(自身を含む): 204763680

約数和(自身を除く): 117502640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 8720, 10007, 20014, 40028, 50035, 80056, 100070, 160112, 200140, 400280, 800560, 1090763, 2181526, 4363052, 5453815, 8726104, 10907630, 17452208, 21815260, 43630520, 87261040]

約数ペア:

[(1, 87261040), (2, 43630520), (4, 21815260), (5, 17452208), (8, 10907630), (10, 8726104), (16, 5453815), (20, 4363052), (40, 2181526), (80, 1090763), (109, 800560), (218, 400280), (436, 200140), (545, 160112), (872, 100070), (1090, 80056), (1744, 50035), (2180, 40028), (4360, 20014), (8720, 10007)]