13906280

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{1559}}^1$

素因数の和:1793

約数の個数: 32

約数和(自身を含む): 31449600

約数和(自身を除く): 17543320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1559, 1784, 2230, 3118, 4460, 6236, 7795, 8920, 12472, 15590, 31180, 62360, 347657, 695314, 1390628, 1738285, 2781256, 3476570, 6953140, 13906280]

約数ペア:

[(1, 13906280), (2, 6953140), (4, 3476570), (5, 2781256), (8, 1738285), (10, 1390628), (20, 695314), (40, 347657), (223, 62360), (446, 31180), (892, 15590), (1115, 12472), (1559, 8920), (1784, 7795), (2230, 6236), (3118, 4460)]