7820145

素因数分解:

$3^4\times 5^1\times {\mathrm{19309}}^1$

素因数の和:19326

約数の個数: 20

約数和(自身を含む): 14019060

約数和(自身を除く): 6198915

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 19309, 57927, 96545, 173781, 289635, 521343, 868905, 1564029, 2606715, 7820145]

約数ペア:

[(1, 7820145), (3, 2606715), (5, 1564029), (9, 868905), (15, 521343), (27, 289635), (45, 173781), (81, 96545), (135, 57927), (405, 19309)]