27980895

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{557}}^1$

素因数の和:779

約数の個数: 32

約数和(自身を含む): 47729088

約数和(自身を除く): 19748193

約数列:

[1, 3, 5, 15, 17, 51, 85, 197, 255, 557, 591, 985, 1671, 2785, 2955, 3349, 8355, 9469, 10047, 16745, 28407, 47345, 50235, 109729, 142035, 329187, 548645, 1645935, 1865393, 5596179, 9326965, 27980895]

約数ペア:

[(1, 27980895), (3, 9326965), (5, 5596179), (15, 1865393), (17, 1645935), (51, 548645), (85, 329187), (197, 142035), (255, 109729), (557, 50235), (591, 47345), (985, 28407), (1671, 16745), (2785, 10047), (2955, 9469), (3349, 8355)]