26661680

素因数分解:

$2^4\times 5^1\times {\mathrm{333271}}^1$

素因数の和:333284

約数の個数: 20

約数和(自身を含む): 61988592

約数和(自身を除く): 35326912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 333271, 666542, 1333084, 1666355, 2666168, 3332710, 5332336, 6665420, 13330840, 26661680]

約数ペア:

[(1, 26661680), (2, 13330840), (4, 6665420), (5, 5332336), (8, 3332710), (10, 2666168), (16, 1666355), (20, 1333084), (40, 666542), (80, 333271)]