20158764880

素因数分解:

$2^4\times 5^1\times {\mathrm{251984561}}^1$

素因数の和:251984574

約数の個数: 20

約数和(自身を含む): 46869128532

約数和(自身を除く): 26710363652

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 251984561, 503969122, 1007938244, 1259922805, 2015876488, 2519845610, 4031752976, 5039691220, 10079382440, 20158764880]

約数ペア:

[(1, 20158764880), (2, 10079382440), (4, 5039691220), (5, 4031752976), (8, 2519845610), (10, 2015876488), (16, 1259922805), (20, 1007938244), (40, 503969122), (80, 251984561)]