825405

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{1123}}^1$

素因数の和:1145

約数の個数: 24

約数和(自身を含む): 1537632

約数和(自身を除く): 712227

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 1123, 3369, 5615, 7861, 16845, 23583, 39305, 55027, 117915, 165081, 275135, 825405]

約数ペア:

[(1, 825405), (3, 275135), (5, 165081), (7, 117915), (15, 55027), (21, 39305), (35, 23583), (49, 16845), (105, 7861), (147, 5615), (245, 3369), (735, 1123)]