1980405

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{6287}}^1$

素因数の和:6305

約数の個数: 24

約数和(自身を含む): 3923712

約数和(自身を除く): 1943307

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 6287, 18861, 31435, 44009, 56583, 94305, 132027, 220045, 282915, 396081, 660135, 1980405]

約数ペア:

[(1, 1980405), (3, 660135), (5, 396081), (7, 282915), (9, 220045), (15, 132027), (21, 94305), (35, 56583), (45, 44009), (63, 31435), (105, 18861), (315, 6287)]