81721020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1362017}}^1$

素因数の和:1362029

約数の個数: 24

約数和(自身を含む): 228819024

約数和(自身を除く): 147098004

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1362017, 2724034, 4086051, 5448068, 6810085, 8172102, 13620170, 16344204, 20430255, 27240340, 40860510, 81721020]

約数ペア:

[(1, 81721020), (2, 40860510), (3, 27240340), (4, 20430255), (5, 16344204), (6, 13620170), (10, 8172102), (12, 6810085), (15, 5448068), (20, 4086051), (30, 2724034), (60, 1362017)]