30871900

素因数分解:

$2^2\times 5^2\times {\mathrm{139}}^1\times {\mathrm{2221}}^1$

素因数の和:2374

約数の個数: 36

約数和(自身を含む): 67504360

約数和(自身を除く): 36632460

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 139, 278, 556, 695, 1390, 2221, 2780, 3475, 4442, 6950, 8884, 11105, 13900, 22210, 44420, 55525, 111050, 222100, 308719, 617438, 1234876, 1543595, 3087190, 6174380, 7717975, 15435950, 30871900]

約数ペア:

[(1, 30871900), (2, 15435950), (4, 7717975), (5, 6174380), (10, 3087190), (20, 1543595), (25, 1234876), (50, 617438), (100, 308719), (139, 222100), (278, 111050), (556, 55525), (695, 44420), (1390, 22210), (2221, 13900), (2780, 11105), (3475, 8884), (4442, 6950)]