19246900

素因数分解:

$2^2\times 5^2\times {\mathrm{197}}^1\times {\mathrm{977}}^1$

素因数の和:1188

約数の個数: 36

約数和(自身を含む): 42020748

約数和(自身を除く): 22773848

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 197, 394, 788, 977, 985, 1954, 1970, 3908, 3940, 4885, 4925, 9770, 9850, 19540, 19700, 24425, 48850, 97700, 192469, 384938, 769876, 962345, 1924690, 3849380, 4811725, 9623450, 19246900]

約数ペア:

[(1, 19246900), (2, 9623450), (4, 4811725), (5, 3849380), (10, 1924690), (20, 962345), (25, 769876), (50, 384938), (100, 192469), (197, 97700), (394, 48850), (788, 24425), (977, 19700), (985, 19540), (1954, 9850), (1970, 9770), (3908, 4925), (3940, 4885)]