8668040

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1559}}^1$

素因数の和:1709

約数の個数: 32

約数和(自身を含む): 19656000

約数和(自身を除く): 10987960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 1559, 2780, 3118, 5560, 6236, 7795, 12472, 15590, 31180, 62360, 216701, 433402, 866804, 1083505, 1733608, 2167010, 4334020, 8668040]

約数ペア:

[(1, 8668040), (2, 4334020), (4, 2167010), (5, 1733608), (8, 1083505), (10, 866804), (20, 433402), (40, 216701), (139, 62360), (278, 31180), (556, 15590), (695, 12472), (1112, 7795), (1390, 6236), (1559, 5560), (2780, 3118)]