20290385

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{1559}}^1$

素因数の和:1720

約数の個数: 16

約数和(自身を含む): 25833600

約数和(自身を除く): 5543215

約数列:

[1, 5, 19, 95, 137, 685, 1559, 2603, 7795, 13015, 29621, 148105, 213583, 1067915, 4058077, 20290385]

約数ペア:

[(1, 20290385), (5, 4058077), (19, 1067915), (95, 213583), (137, 148105), (685, 29621), (1559, 13015), (2603, 7795)]