1581040

素因数分解:

$2^4\times 5^1\times {\mathrm{19763}}^1$

素因数の和:19776

約数の個数: 20

約数和(自身を含む): 3676104

約数和(自身を除く): 2095064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 19763, 39526, 79052, 98815, 158104, 197630, 316208, 395260, 790520, 1581040]

約数ペア:

[(1, 1581040), (2, 790520), (4, 395260), (5, 316208), (8, 197630), (10, 158104), (16, 98815), (20, 79052), (40, 39526), (80, 19763)]