8289980

素因数分解:

$2^2\times 5^1\times {\mathrm{457}}^1\times {\mathrm{907}}^1$

素因数の和:1373

約数の個数: 24

約数和(自身を含む): 17466288

約数和(自身を除く): 9176308

約数列:

[1, 2, 4, 5, 10, 20, 457, 907, 914, 1814, 1828, 2285, 3628, 4535, 4570, 9070, 9140, 18140, 414499, 828998, 1657996, 2072495, 4144990, 8289980]

約数ペア:

[(1, 8289980), (2, 4144990), (4, 2072495), (5, 1657996), (10, 828998), (20, 414499), (457, 18140), (907, 9140), (914, 9070), (1814, 4570), (1828, 4535), (2285, 3628)]