7890220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{30347}}^1$

素因数の和:30369

約数の個数: 24

約数和(自身を含む): 17844624

約数和(自身を除く): 9954404

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 30347, 60694, 121388, 151735, 303470, 394511, 606940, 789022, 1578044, 1972555, 3945110, 7890220]

約数ペア:

[(1, 7890220), (2, 3945110), (4, 1972555), (5, 1578044), (10, 789022), (13, 606940), (20, 394511), (26, 303470), (52, 151735), (65, 121388), (130, 60694), (260, 30347)]