128777405

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{5087}}^1$

素因数の和:5236

約数の個数: 16

約数和(自身を含む): 158989824

約数和(自身を除く): 30212419

約数列:

[1, 5, 61, 83, 305, 415, 5063, 5087, 25315, 25435, 310307, 422221, 1551535, 2111105, 25755481, 128777405]

約数ペア:

[(1, 128777405), (5, 25755481), (61, 2111105), (83, 1551535), (305, 422221), (415, 310307), (5063, 25435), (5087, 25315)]