81580850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{125509}}^1$

素因数の和:125534

約数の個数: 24

約数和(自身を含む): 163414020

約数和(自身を除く): 81833170

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 125509, 251018, 627545, 1255090, 1631617, 3137725, 3263234, 6275450, 8158085, 16316170, 40790425, 81580850]

約数ペア:

[(1, 81580850), (2, 40790425), (5, 16316170), (10, 8158085), (13, 6275450), (25, 3263234), (26, 3137725), (50, 1631617), (65, 1255090), (130, 627545), (325, 251018), (650, 125509)]