12687760

素因数分解:

$2^4\times 5^1\times {\mathrm{158597}}^1$

素因数の和:158610

約数の個数: 20

約数和(自身を含む): 29499228

約数和(自身を除く): 16811468

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 158597, 317194, 634388, 792985, 1268776, 1585970, 2537552, 3171940, 6343880, 12687760]

約数ペア:

[(1, 12687760), (2, 6343880), (4, 3171940), (5, 2537552), (8, 1585970), (10, 1268776), (16, 792985), (20, 634388), (40, 317194), (80, 158597)]