20845854770

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8849}}^1\times {\mathrm{18121}}^1$

素因数の和:26990

約数の個数: 32

約数和(自身を含む): 40415684400

約数和(自身を除く): 19569829630

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 8849, 17698, 18121, 36242, 44245, 88490, 90605, 115037, 181210, 230074, 235573, 471146, 575185, 1150370, 1177865, 2355730, 160352729, 320705458, 801763645, 1603527290, 2084585477, 4169170954, 10422927385, 20845854770]

約数ペア:

[(1, 20845854770), (2, 10422927385), (5, 4169170954), (10, 2084585477), (13, 1603527290), (26, 801763645), (65, 320705458), (130, 160352729), (8849, 2355730), (17698, 1177865), (18121, 1150370), (36242, 575185), (44245, 471146), (88490, 235573), (90605, 230074), (115037, 181210)]