20178095

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{1597}}^1$

素因数の和:1647

約数の個数: 24

約数和(自身を含む): 29224224

約数和(自身を除く): 9046129

約数列:

[1, 5, 7, 19, 35, 95, 133, 361, 665, 1597, 1805, 2527, 7985, 11179, 12635, 30343, 55895, 151715, 212401, 576517, 1062005, 2882585, 4035619, 20178095]

約数ペア:

[(1, 20178095), (5, 4035619), (7, 2882585), (19, 1062005), (35, 576517), (95, 212401), (133, 151715), (361, 55895), (665, 30343), (1597, 12635), (1805, 11179), (2527, 7985)]