19801234

素因数分解:

$2^1\times {\mathrm{151}}^1\times {\mathrm{173}}^1\times {\mathrm{379}}^1$

素因数の和:705

約数の個数: 16

約数和(自身を含む): 30150720

約数和(自身を除く): 10349486

約数列:

[1, 2, 151, 173, 302, 346, 379, 758, 26123, 52246, 57229, 65567, 114458, 131134, 9900617, 19801234]

約数ペア:

[(1, 19801234), (2, 9900617), (151, 131134), (173, 114458), (302, 65567), (346, 57229), (379, 52246), (758, 26123)]