199923985

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{449}}^1$

素因数の和:625

約数の個数: 32

約数和(自身を含む): 261360000

約数和(自身を除く): 61436015

約数列:

[1, 5, 19, 43, 95, 109, 215, 449, 545, 817, 2071, 2245, 4085, 4687, 8531, 10355, 19307, 23435, 42655, 48941, 89053, 96535, 244705, 366833, 445265, 929879, 1834165, 2104463, 4649395, 10522315, 39984797, 199923985]

約数ペア:

[(1, 199923985), (5, 39984797), (19, 10522315), (43, 4649395), (95, 2104463), (109, 1834165), (215, 929879), (449, 445265), (545, 366833), (817, 244705), (2071, 96535), (2245, 89053), (4085, 48941), (4687, 42655), (8531, 23435), (10355, 19307)]