81378805

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{839}}^1\times {\mathrm{1021}}^1$

素因数の和:1884

約数の個数: 16

約数和(自身を含む): 103017600

約数和(自身を除く): 21638795

約数列:

[1, 5, 19, 95, 839, 1021, 4195, 5105, 15941, 19399, 79705, 96995, 856619, 4283095, 16275761, 81378805]

約数ペア:

[(1, 81378805), (5, 16275761), (19, 4283095), (95, 856619), (839, 96995), (1021, 79705), (4195, 19399), (5105, 15941)]