87217040

素因数分解:

$2^4\times 5^1\times {\mathrm{1090213}}^1$

素因数の和:1090226

約数の個数: 20

約数和(自身を含む): 202779804

約数和(自身を除く): 115562764

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1090213, 2180426, 4360852, 5451065, 8721704, 10902130, 17443408, 21804260, 43608520, 87217040]

約数ペア:

[(1, 87217040), (2, 43608520), (4, 21804260), (5, 17443408), (8, 10902130), (10, 8721704), (16, 5451065), (20, 4360852), (40, 2180426), (80, 1090213)]