999760

素因数分解:

$2^4\times 5^1\times {\mathrm{12497}}^1$

素因数の和:12510

約数の個数: 20

約数和(自身を含む): 2324628

約数和(自身を除く): 1324868

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 12497, 24994, 49988, 62485, 99976, 124970, 199952, 249940, 499880, 999760]

約数ペア:

[(1, 999760), (2, 499880), (4, 249940), (5, 199952), (8, 124970), (10, 99976), (16, 62485), (20, 49988), (40, 24994), (80, 12497)]