20474005

素因数分解:

$5^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{331}}^1$

素因数の和:564

約数の個数: 16

約数和(自身を含む): 25099200

約数和(自身を除く): 4625195

約数列:

[1, 5, 89, 139, 331, 445, 695, 1655, 12371, 29459, 46009, 61855, 147295, 230045, 4094801, 20474005]

約数ペア:

[(1, 20474005), (5, 4094801), (89, 230045), (139, 147295), (331, 61855), (445, 46009), (695, 29459), (1655, 12371)]