20208925

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1709}}^1$

素因数の和:1773

約数の個数: 24

約数和(自身を含む): 27989280

約数和(自身を除く): 7780355

約数列:

[1, 5, 11, 25, 43, 55, 215, 275, 473, 1075, 1709, 2365, 8545, 11825, 18799, 42725, 73487, 93995, 367435, 469975, 808357, 1837175, 4041785, 20208925]

約数ペア:

[(1, 20208925), (5, 4041785), (11, 1837175), (25, 808357), (43, 469975), (55, 367435), (215, 93995), (275, 73487), (473, 42725), (1075, 18799), (1709, 11825), (2365, 8545)]