12811420

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{14897}}^1$

素因数の和:14949

約数の個数: 24

約数和(自身を含む): 27531504

約数和(自身を除く): 14720084

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 14897, 29794, 59588, 74485, 148970, 297940, 640571, 1281142, 2562284, 3202855, 6405710, 12811420]

約数ペア:

[(1, 12811420), (2, 6405710), (4, 3202855), (5, 2562284), (10, 1281142), (20, 640571), (43, 297940), (86, 148970), (172, 74485), (215, 59588), (430, 29794), (860, 14897)]