12403780

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{14423}}^1$

素因数の和:14475

約数の個数: 24

約数和(自身を含む): 26655552

約数和(自身を除く): 14251772

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 14423, 28846, 57692, 72115, 144230, 288460, 620189, 1240378, 2480756, 3100945, 6201890, 12403780]

約数ペア:

[(1, 12403780), (2, 6201890), (4, 3100945), (5, 2480756), (10, 1240378), (20, 620189), (43, 288460), (86, 144230), (172, 72115), (215, 57692), (430, 28846), (860, 14423)]