420214916

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{24551}}^1$

素因数の和:24955

約数の個数: 24

約数和(自身を含む): 804323520

約数和(自身を除く): 384108604

約数列:

[1, 2, 4, 11, 22, 44, 389, 778, 1556, 4279, 8558, 17116, 24551, 49102, 98204, 270061, 540122, 1080244, 9550339, 19100678, 38201356, 105053729, 210107458, 420214916]

約数ペア:

[(1, 420214916), (2, 210107458), (4, 105053729), (11, 38201356), (22, 19100678), (44, 9550339), (389, 1080244), (778, 540122), (1556, 270061), (4279, 98204), (8558, 49102), (17116, 24551)]