2505405

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{223}}^1$

素因数の和:345

約数の個数: 32

約数和(自身を含む): 4644864

約数和(自身を除く): 2139459

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 107, 223, 321, 535, 669, 749, 1115, 1561, 1605, 2247, 3345, 3745, 4683, 7805, 11235, 23415, 23861, 71583, 119305, 167027, 357915, 501081, 835135, 2505405]

約数ペア:

[(1, 2505405), (3, 835135), (5, 501081), (7, 357915), (15, 167027), (21, 119305), (35, 71583), (105, 23861), (107, 23415), (223, 11235), (321, 7805), (535, 4683), (669, 3745), (749, 3345), (1115, 2247), (1561, 1605)]