20157005

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{19289}}^1$

素因数の和:19324

約数の個数: 16

約数和(自身を含む): 27777600

約数和(自身を除く): 7620595

約数列:

[1, 5, 11, 19, 55, 95, 209, 1045, 19289, 96445, 212179, 366491, 1060895, 1832455, 4031401, 20157005]

約数ペア:

[(1, 20157005), (5, 4031401), (11, 1832455), (19, 1060895), (55, 366491), (95, 212179), (209, 96445), (1045, 19289)]