99428720

素因数分解:

$2^4\times 5^1\times {\mathrm{1242859}}^1$

素因数の和:1242872

約数の個数: 20

約数和(自身を含む): 231171960

約数和(自身を除く): 131743240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1242859, 2485718, 4971436, 6214295, 9942872, 12428590, 19885744, 24857180, 49714360, 99428720]

約数ペア:

[(1, 99428720), (2, 49714360), (4, 24857180), (5, 19885744), (8, 12428590), (10, 9942872), (16, 6214295), (20, 4971436), (40, 2485718), (80, 1242859)]