156974001205

素因数分解:

$5^1\times 7^2\times {\mathrm{640710209}}^1$

素因数の和:640710228

約数の個数: 12

約数和(自身を含む): 219122891820

約数和(自身を除く): 62148890615

約数列:

[1, 5, 7, 35, 49, 245, 640710209, 3203551045, 4484971463, 22424857315, 31394800241, 156974001205]

約数ペア:

[(1, 156974001205), (5, 31394800241), (7, 22424857315), (35, 4484971463), (49, 3203551045), (245, 640710209)]