31941680

素因数分解:

$2^4\times 5^1\times {\mathrm{399271}}^1$

素因数の和:399284

約数の個数: 20

約数和(自身を含む): 74264592

約数和(自身を除く): 42322912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 399271, 798542, 1597084, 1996355, 3194168, 3992710, 6388336, 7985420, 15970840, 31941680]

約数ペア:

[(1, 31941680), (2, 15970840), (4, 7985420), (5, 6388336), (8, 3992710), (10, 3194168), (16, 1996355), (20, 1597084), (40, 798542), (80, 399271)]