17920120

素因数分解:

$2^3\times 5^1\times {\mathrm{448003}}^1$

素因数の和:448014

約数の個数: 16

約数和(自身を含む): 40320360

約数和(自身を除く): 22400240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 448003, 896006, 1792012, 2240015, 3584024, 4480030, 8960060, 17920120]

約数ペア:

[(1, 17920120), (2, 8960060), (4, 4480030), (5, 3584024), (8, 2240015), (10, 1792012), (20, 896006), (40, 448003)]