78857204

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{221509}}^1$

素因数の和:221602

約数の個数: 12

約数和(自身を含む): 139551300

約数和(自身を除く): 60694096

約数列:

[1, 2, 4, 89, 178, 356, 221509, 443018, 886036, 19714301, 39428602, 78857204]

約数ペア:

[(1, 78857204), (2, 39428602), (4, 19714301), (89, 886036), (178, 443018), (356, 221509)]