15515980

素因数分解:

$2^2\times 5^1\times {\mathrm{359}}^1\times {\mathrm{2161}}^1$

素因数の和:2529

約数の個数: 24

約数和(自身を含む): 32689440

約数和(自身を除く): 17173460

約数列:

[1, 2, 4, 5, 10, 20, 359, 718, 1436, 1795, 2161, 3590, 4322, 7180, 8644, 10805, 21610, 43220, 775799, 1551598, 3103196, 3878995, 7757990, 15515980]

約数ペア:

[(1, 15515980), (2, 7757990), (4, 3878995), (5, 3103196), (10, 1551598), (20, 775799), (359, 43220), (718, 21610), (1436, 10805), (1795, 8644), (2161, 7180), (3590, 4322)]