20876080

素因数分解:

$2^4\times 5^1\times {\mathrm{260951}}^1$

素因数の和:260964

約数の個数: 20

約数和(自身を含む): 48537072

約数和(自身を除く): 27660992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 260951, 521902, 1043804, 1304755, 2087608, 2609510, 4175216, 5219020, 10438040, 20876080]

約数ペア:

[(1, 20876080), (2, 10438040), (4, 5219020), (5, 4175216), (8, 2609510), (10, 2087608), (16, 1304755), (20, 1043804), (40, 521902), (80, 260951)]