220052620

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{180371}}^1$

素因数の和:180441

約数の個数: 24

約数和(自身を含む): 469688688

約数和(自身を除く): 249636068

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 180371, 360742, 721484, 901855, 1803710, 3607420, 11002631, 22005262, 44010524, 55013155, 110026310, 220052620]

約数ペア:

[(1, 220052620), (2, 110026310), (4, 55013155), (5, 44010524), (10, 22005262), (20, 11002631), (61, 3607420), (122, 1803710), (244, 901855), (305, 721484), (610, 360742), (1220, 180371)]