28304815

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{1987}}^1$

素因数の和:2047

約数の個数: 32

約数和(自身を含む): 43513344

約数和(自身を除く): 15208529

約数列:

[1, 5, 7, 11, 35, 37, 55, 77, 185, 259, 385, 407, 1295, 1987, 2035, 2849, 9935, 13909, 14245, 21857, 69545, 73519, 109285, 152999, 367595, 514633, 764995, 808709, 2573165, 4043545, 5660963, 28304815]

約数ペア:

[(1, 28304815), (5, 5660963), (7, 4043545), (11, 2573165), (35, 808709), (37, 764995), (55, 514633), (77, 367595), (185, 152999), (259, 109285), (385, 73519), (407, 69545), (1295, 21857), (1987, 14245), (2035, 13909), (2849, 9935)]