128793805

素因数分解:

$5^1\times 7^2\times {\mathrm{521}}^1\times {\mathrm{1009}}^1$

素因数の和:1549

約数の個数: 24

約数和(自身を含む): 180309240

約数和(自身を除く): 51515435

約数列:

[1, 5, 7, 35, 49, 245, 521, 1009, 2605, 3647, 5045, 7063, 18235, 25529, 35315, 49441, 127645, 247205, 525689, 2628445, 3679823, 18399115, 25758761, 128793805]

約数ペア:

[(1, 128793805), (5, 25758761), (7, 18399115), (35, 3679823), (49, 2628445), (245, 525689), (521, 247205), (1009, 127645), (2605, 49441), (3647, 35315), (5045, 25529), (7063, 18235)]