19837220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{5869}}^1$

素因数の和:5904

約数の個数: 36

約数和(自身を含む): 45116820

約数和(自身を除く): 25279600

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 5869, 11738, 23476, 29345, 58690, 76297, 117380, 152594, 305188, 381485, 762970, 991861, 1525940, 1983722, 3967444, 4959305, 9918610, 19837220]

約数ペア:

[(1, 19837220), (2, 9918610), (4, 4959305), (5, 3967444), (10, 1983722), (13, 1525940), (20, 991861), (26, 762970), (52, 381485), (65, 305188), (130, 152594), (169, 117380), (260, 76297), (338, 58690), (676, 29345), (845, 23476), (1690, 11738), (3380, 5869)]