40728080

素因数分解:

$2^4\times 5^1\times {\mathrm{509101}}^1$

素因数の和:509114

約数の個数: 20

約数和(自身を含む): 94692972

約数和(自身を除く): 53964892

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 509101, 1018202, 2036404, 2545505, 4072808, 5091010, 8145616, 10182020, 20364040, 40728080]

約数ペア:

[(1, 40728080), (2, 20364040), (4, 10182020), (5, 8145616), (8, 5091010), (10, 4072808), (16, 2545505), (20, 2036404), (40, 1018202), (80, 509101)]