28435280

素因数分解:

$2^4\times 5^1\times {\mathrm{355441}}^1$

素因数の和:355454

約数の個数: 20

約数和(自身を含む): 66112212

約数和(自身を除く): 37676932

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 355441, 710882, 1421764, 1777205, 2843528, 3554410, 5687056, 7108820, 14217640, 28435280]

約数ペア:

[(1, 28435280), (2, 14217640), (4, 7108820), (5, 5687056), (8, 3554410), (10, 2843528), (16, 1777205), (20, 1421764), (40, 710882), (80, 355441)]