12961240

素因数分解:

$2^3\times 5^1\times {\mathrm{324031}}^1$

素因数の和:324042

約数の個数: 16

約数和(自身を含む): 29162880

約数和(自身を除く): 16201640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 324031, 648062, 1296124, 1620155, 2592248, 3240310, 6480620, 12961240]

約数ペア:

[(1, 12961240), (2, 6480620), (4, 3240310), (5, 2592248), (8, 1620155), (10, 1296124), (20, 648062), (40, 324031)]