20559805

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{719}}^1$

素因数の和:793

約数の個数: 32

約数和(自身を含む): 30412800

約数和(自身を除く): 9852995

約数列:

[1, 5, 7, 19, 35, 43, 95, 133, 215, 301, 665, 719, 817, 1505, 3595, 4085, 5033, 5719, 13661, 25165, 28595, 30917, 68305, 95627, 154585, 216419, 478135, 587423, 1082095, 2937115, 4111961, 20559805]

約数ペア:

[(1, 20559805), (5, 4111961), (7, 2937115), (19, 1082095), (35, 587423), (43, 478135), (95, 216419), (133, 154585), (215, 95627), (301, 68305), (665, 30917), (719, 28595), (817, 25165), (1505, 13661), (3595, 5719), (4085, 5033)]