208115260

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{21193}}^1$

素因数の和:21693

約数の個数: 24

約数和(自身を含む): 437952816

約数和(自身を除く): 229837556

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1964, 2455, 4910, 9820, 21193, 42386, 84772, 105965, 211930, 423860, 10405763, 20811526, 41623052, 52028815, 104057630, 208115260]

約数ペア:

[(1, 208115260), (2, 104057630), (4, 52028815), (5, 41623052), (10, 20811526), (20, 10405763), (491, 423860), (982, 211930), (1964, 105965), (2455, 84772), (4910, 42386), (9820, 21193)]