201991319995

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{4129}}^1\times {\mathrm{514949}}^1$

素因数の和:519102

約数の個数: 16

約数和(自身を含む): 255209220000

約数和(自身を除く): 53217900005

約数列:

[1, 5, 19, 95, 4129, 20645, 78451, 392255, 514949, 2574745, 9784031, 48920155, 2126224421, 10631122105, 40398263999, 201991319995]

約数ペア:

[(1, 201991319995), (5, 40398263999), (19, 10631122105), (95, 2126224421), (4129, 48920155), (20645, 9784031), (78451, 2574745), (392255, 514949)]