1223780

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1423}}^1$

素因数の和:1475

約数の個数: 24

約数和(自身を含む): 2631552

約数和(自身を除く): 1407772

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 1423, 2846, 5692, 7115, 14230, 28460, 61189, 122378, 244756, 305945, 611890, 1223780]

約数ペア:

[(1, 1223780), (2, 611890), (4, 305945), (5, 244756), (10, 122378), (20, 61189), (43, 28460), (86, 14230), (172, 7115), (215, 5692), (430, 2846), (860, 1423)]