1285751385

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{664471}}^1$

素因数の和:664525

約数の個数: 24

約数和(自身を含む): 2280467904

約数和(自身を除く): 994716519

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 664471, 1993413, 3322355, 5980239, 9967065, 28572253, 29901195, 85716759, 142861265, 257150277, 428583795, 1285751385]

約数ペア:

[(1, 1285751385), (3, 428583795), (5, 257150277), (9, 142861265), (15, 85716759), (43, 29901195), (45, 28572253), (129, 9967065), (215, 5980239), (387, 3322355), (645, 1993413), (1935, 664471)]