289693820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1114207}}^1$

素因数の和:1114229

約数の個数: 24

約数和(自身を含む): 655154304

約数和(自身を除く): 365460484

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1114207, 2228414, 4456828, 5571035, 11142070, 14484691, 22284140, 28969382, 57938764, 72423455, 144846910, 289693820]

約数ペア:

[(1, 289693820), (2, 144846910), (4, 72423455), (5, 57938764), (10, 28969382), (13, 22284140), (20, 14484691), (26, 11142070), (52, 5571035), (65, 4456828), (130, 2228414), (260, 1114207)]