30980240

素因数分解:

$2^4\times 5^1\times {\mathrm{387253}}^1$

素因数の和:387266

約数の個数: 20

約数和(自身を含む): 72029244

約数和(自身を除く): 41049004

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 387253, 774506, 1549012, 1936265, 3098024, 3872530, 6196048, 7745060, 15490120, 30980240]

約数ペア:

[(1, 30980240), (2, 15490120), (4, 7745060), (5, 6196048), (8, 3872530), (10, 3098024), (16, 1936265), (20, 1549012), (40, 774506), (80, 387253)]