28403120

素因数分解:

$2^4\times 5^1\times {\mathrm{355039}}^1$

素因数の和:355052

約数の個数: 20

約数和(自身を含む): 66037440

約数和(自身を除く): 37634320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 355039, 710078, 1420156, 1775195, 2840312, 3550390, 5680624, 7100780, 14201560, 28403120]

約数ペア:

[(1, 28403120), (2, 14201560), (4, 7100780), (5, 5680624), (8, 3550390), (10, 2840312), (16, 1775195), (20, 1420156), (40, 710078), (80, 355039)]