20440155

素因数分解:

$3^1\times 5^1\times {\mathrm{863}}^1\times {\mathrm{1579}}^1$

素因数の和:2450

約数の個数: 16

約数和(自身を含む): 32762880

約数和(自身を除く): 12322725

約数列:

[1, 3, 5, 15, 863, 1579, 2589, 4315, 4737, 7895, 12945, 23685, 1362677, 4088031, 6813385, 20440155]

約数ペア:

[(1, 20440155), (3, 6813385), (5, 4088031), (15, 1362677), (863, 23685), (1579, 12945), (2589, 7895), (4315, 4737)]