20156008

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{28309}}^1$

素因数の和:28404

約数の個数: 16

約数和(自身を含む): 38218500

約数和(自身を除く): 18062492

約数列:

[1, 2, 4, 8, 89, 178, 356, 712, 28309, 56618, 113236, 226472, 2519501, 5039002, 10078004, 20156008]

約数ペア:

[(1, 20156008), (2, 10078004), (4, 5039002), (8, 2519501), (89, 226472), (178, 113236), (356, 56618), (712, 28309)]