79541680

素因数分解:

$2^4\times 5^1\times {\mathrm{994271}}^1$

素因数の和:994284

約数の個数: 20

約数和(自身を含む): 184934592

約数和(自身を除く): 105392912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 994271, 1988542, 3977084, 4971355, 7954168, 9942710, 15908336, 19885420, 39770840, 79541680]

約数ペア:

[(1, 79541680), (2, 39770840), (4, 19885420), (5, 15908336), (8, 9942710), (10, 7954168), (16, 4971355), (20, 3977084), (40, 1988542), (80, 994271)]