28404560

素因数分解:

$2^4\times 5^1\times {\mathrm{355057}}^1$

素因数の和:355070

約数の個数: 20

約数和(自身を含む): 66040788

約数和(自身を除く): 37636228

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 355057, 710114, 1420228, 1775285, 2840456, 3550570, 5680912, 7101140, 14202280, 28404560]

約数ペア:

[(1, 28404560), (2, 14202280), (4, 7101140), (5, 5680912), (8, 3550570), (10, 2840456), (16, 1775285), (20, 1420228), (40, 710114), (80, 355057)]