20622220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{54269}}^1$

素因数の和:54297

約数の個数: 24

約数和(自身を含む): 45586800

約数和(自身を除く): 24964580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 54269, 108538, 217076, 271345, 542690, 1031111, 1085380, 2062222, 4124444, 5155555, 10311110, 20622220]

約数ペア:

[(1, 20622220), (2, 10311110), (4, 5155555), (5, 4124444), (10, 2062222), (19, 1085380), (20, 1031111), (38, 542690), (76, 271345), (95, 217076), (190, 108538), (380, 54269)]