128911885

素因数分解:

$5^1\times {\mathrm{37}}^3\times {\mathrm{509}}^1$

素因数の和:625

約数の個数: 16

約数和(自身を含む): 159303600

約数和(自身を除く): 30391715

約数列:

[1, 5, 37, 185, 509, 1369, 2545, 6845, 18833, 50653, 94165, 253265, 696821, 3484105, 25782377, 128911885]

約数ペア:

[(1, 128911885), (5, 25782377), (37, 3484105), (185, 696821), (509, 253265), (1369, 94165), (2545, 50653), (6845, 18833)]