81549805

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1\times {\mathrm{2039}}^1$

素因数の和:2484

約数の個数: 16

約数和(自身を含む): 103305600

約数和(自身を除く): 21755795

約数列:

[1, 5, 19, 95, 421, 2039, 2105, 7999, 10195, 38741, 39995, 193705, 858419, 4292095, 16309961, 81549805]

約数ペア:

[(1, 81549805), (5, 16309961), (19, 4292095), (95, 858419), (421, 193705), (2039, 39995), (2105, 38741), (7999, 10195)]