18909478078

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{379}}^1\times {\mathrm{315779}}^1$

素因数の和:316239

約数の個数: 16

約数和(自身を含む): 28799136000

約数和(自身を除く): 9889657922

約数列:

[1, 2, 79, 158, 379, 758, 29941, 59882, 315779, 631558, 24946541, 49893082, 119680241, 239360482, 9454739039, 18909478078]

約数ペア:

[(1, 18909478078), (2, 9454739039), (79, 239360482), (158, 119680241), (379, 49893082), (758, 24946541), (29941, 631558), (59882, 315779)]