31199900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{16421}}^1$

素因数の和:16454

約数の個数: 36

約数和(自身を含む): 71271480

約数和(自身を除く): 40071580

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 475, 950, 1900, 16421, 32842, 65684, 82105, 164210, 311999, 328420, 410525, 623998, 821050, 1247996, 1559995, 1642100, 3119990, 6239980, 7799975, 15599950, 31199900]

約数ペア:

[(1, 31199900), (2, 15599950), (4, 7799975), (5, 6239980), (10, 3119990), (19, 1642100), (20, 1559995), (25, 1247996), (38, 821050), (50, 623998), (76, 410525), (95, 328420), (100, 311999), (190, 164210), (380, 82105), (475, 65684), (950, 32842), (1900, 16421)]