9990505

素因数分解:

$5^1\times 7^1\times {\mathrm{397}}^1\times {\mathrm{719}}^1$

素因数の和:1128

約数の個数: 16

約数和(自身を含む): 13754880

約数和(自身を除く): 3764375

約数列:

[1, 5, 7, 35, 397, 719, 1985, 2779, 3595, 5033, 13895, 25165, 285443, 1427215, 1998101, 9990505]

約数ペア:

[(1, 9990505), (5, 1998101), (7, 1427215), (35, 285443), (397, 25165), (719, 13895), (1985, 5033), (2779, 3595)]