12963640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{7537}}^1$

素因数の和:7591

約数の個数: 32

約数和(自身を含む): 29850480

約数和(自身を除く): 16886840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 7537, 15074, 30148, 37685, 60296, 75370, 150740, 301480, 324091, 648182, 1296364, 1620455, 2592728, 3240910, 6481820, 12963640]

約数ペア:

[(1, 12963640), (2, 6481820), (4, 3240910), (5, 2592728), (8, 1620455), (10, 1296364), (20, 648182), (40, 324091), (43, 301480), (86, 150740), (172, 75370), (215, 60296), (344, 37685), (430, 30148), (860, 15074), (1720, 7537)]