656668220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2525647}}^1$

素因数の和:2525669

約数の個数: 24

約数和(自身を含む): 1485081024

約数和(自身を除く): 828412804

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 2525647, 5051294, 10102588, 12628235, 25256470, 32833411, 50512940, 65666822, 131333644, 164167055, 328334110, 656668220]

約数ペア:

[(1, 656668220), (2, 328334110), (4, 164167055), (5, 131333644), (10, 65666822), (13, 50512940), (20, 32833411), (26, 25256470), (52, 12628235), (65, 10102588), (130, 5051294), (260, 2525647)]