20416165

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2791}}^1$

素因数の和:2833

約数の個数: 32

約数和(自身を含む): 32163840

約数和(自身を除く): 11747675

約数列:

[1, 5, 7, 11, 19, 35, 55, 77, 95, 133, 209, 385, 665, 1045, 1463, 2791, 7315, 13955, 19537, 30701, 53029, 97685, 153505, 214907, 265145, 371203, 583319, 1074535, 1856015, 2916595, 4083233, 20416165]

約数ペア:

[(1, 20416165), (5, 4083233), (7, 2916595), (11, 1856015), (19, 1074535), (35, 583319), (55, 371203), (77, 265145), (95, 214907), (133, 153505), (209, 97685), (385, 53029), (665, 30701), (1045, 19537), (1463, 13955), (2791, 7315)]