20385045

素因数分解:

$3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3259}}^1$

素因数の和:3409

約数の個数: 24

約数和(自身を含む): 35599200

約数和(自身を除く): 15214155

約数列:

[1, 3, 5, 9, 15, 45, 139, 417, 695, 1251, 2085, 3259, 6255, 9777, 16295, 29331, 48885, 146655, 453001, 1359003, 2265005, 4077009, 6795015, 20385045]

約数ペア:

[(1, 20385045), (3, 6795015), (5, 4077009), (9, 2265005), (15, 1359003), (45, 453001), (139, 146655), (417, 48885), (695, 29331), (1251, 16295), (2085, 9777), (3259, 6255)]