28320545

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{661}}^1$

素因数の和:737

約数の個数: 32

約数和(自身を含む): 40037760

約数和(自身を除く): 11717215

約数列:

[1, 5, 11, 19, 41, 55, 95, 205, 209, 451, 661, 779, 1045, 2255, 3305, 3895, 7271, 8569, 12559, 27101, 36355, 42845, 62795, 135505, 138149, 298111, 514919, 690745, 1490555, 2574595, 5664109, 28320545]

約数ペア:

[(1, 28320545), (5, 5664109), (11, 2574595), (19, 1490555), (41, 690745), (55, 514919), (95, 298111), (205, 138149), (209, 135505), (451, 62795), (661, 42845), (779, 36355), (1045, 27101), (2255, 12559), (3305, 8569), (3895, 7271)]