19627025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{479}}^1$

素因数の和:649

約数の個数: 24

約数和(自身を含む): 26784000

約数和(自身を除く): 7156975

約数列:

[1, 5, 11, 25, 55, 149, 275, 479, 745, 1639, 2395, 3725, 5269, 8195, 11975, 26345, 40975, 71371, 131725, 356855, 785081, 1784275, 3925405, 19627025]

約数ペア:

[(1, 19627025), (5, 3925405), (11, 1784275), (25, 785081), (55, 356855), (149, 131725), (275, 71371), (479, 40975), (745, 26345), (1639, 11975), (2395, 8195), (3725, 5269)]