128899691110

素因数分解:

$2^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{61089901}}^1$

素因数の和:61090119

約数の個数: 16

約数和(自身を含む): 233119066032

約数和(自身を除く): 104219374922

約数列:

[1, 2, 5, 10, 211, 422, 1055, 2110, 61089901, 122179802, 305449505, 610899010, 12889969111, 25779938222, 64449845555, 128899691110]

約数ペア:

[(1, 128899691110), (2, 64449845555), (5, 25779938222), (10, 12889969111), (211, 610899010), (422, 305449505), (1055, 122179802), (2110, 61089901)]