25787120

素因数分解:

$2^4\times 5^1\times {\mathrm{322339}}^1$

素因数の和:322352

約数の個数: 20

約数和(自身を含む): 59955240

約数和(自身を除く): 34168120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 322339, 644678, 1289356, 1611695, 2578712, 3223390, 5157424, 6446780, 12893560, 25787120]

約数ペア:

[(1, 25787120), (2, 12893560), (4, 6446780), (5, 5157424), (8, 3223390), (10, 2578712), (16, 1611695), (20, 1289356), (40, 644678), (80, 322339)]