20656070

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89809}}^1$

素因数の和:89839

約数の個数: 16

約数和(自身を含む): 38797920

約数和(自身を除く): 18141850

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 89809, 179618, 449045, 898090, 2065607, 4131214, 10328035, 20656070]

約数ペア:

[(1, 20656070), (2, 10328035), (5, 4131214), (10, 2065607), (23, 898090), (46, 449045), (115, 179618), (230, 89809)]