128326465

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1\times {\mathrm{1621}}^1$

素因数の和:1920

約数の個数: 16

約数和(自身を含む): 156957696

約数和(自身を除く): 28631231

約数列:

[1, 5, 71, 223, 355, 1115, 1621, 8105, 15833, 79165, 115091, 361483, 575455, 1807415, 25665293, 128326465]

約数ペア:

[(1, 128326465), (5, 25665293), (71, 1807415), (223, 575455), (355, 361483), (1115, 115091), (1621, 79165), (8105, 15833)]