20292775

素因数分解:

$5^2\times {\mathrm{43}}^2\times {\mathrm{439}}^1$

素因数の和:535

約数の個数: 18

約数和(自身を含む): 25820520

約数和(自身を除く): 5527745

約数列:

[1, 5, 25, 43, 215, 439, 1075, 1849, 2195, 9245, 10975, 18877, 46225, 94385, 471925, 811711, 4058555, 20292775]

約数ペア:

[(1, 20292775), (5, 4058555), (25, 811711), (43, 471925), (215, 94385), (439, 46225), (1075, 18877), (1849, 10975), (2195, 9245)]