128214160

素因数分解:

$2^4\times 5^1\times {\mathrm{1602677}}^1$

素因数の和:1602690

約数の個数: 20

約数和(自身を含む): 298098108

約数和(自身を除く): 169883948

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1602677, 3205354, 6410708, 8013385, 12821416, 16026770, 25642832, 32053540, 64107080, 128214160]

約数ペア:

[(1, 128214160), (2, 64107080), (4, 32053540), (5, 25642832), (8, 16026770), (10, 12821416), (16, 8013385), (20, 6410708), (40, 3205354), (80, 1602677)]