209969330180

素因数分解:

$2^2\times 5^1\times {\mathrm{10498466509}}^1$

素因数の和:10498466518

約数の個数: 12

約数和(自身を含む): 440935593420

約数和(自身を除く): 230966263240

約数列:

[1, 2, 4, 5, 10, 20, 10498466509, 20996933018, 41993866036, 52492332545, 104984665090, 209969330180]

約数ペア:

[(1, 209969330180), (2, 104984665090), (4, 52492332545), (5, 41993866036), (10, 20996933018), (20, 10498466509)]