28450220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{74869}}^1$

素因数の和:74897

約数の個数: 24

約数和(自身を含む): 62890800

約数和(自身を除く): 34440580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 74869, 149738, 299476, 374345, 748690, 1422511, 1497380, 2845022, 5690044, 7112555, 14225110, 28450220]

約数ペア:

[(1, 28450220), (2, 14225110), (4, 7112555), (5, 5690044), (10, 2845022), (19, 1497380), (20, 1422511), (38, 748690), (76, 374345), (95, 299476), (190, 149738), (380, 74869)]