80662988

素因数分解:

$2^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{21991}}^1$

素因数の和:22133

約数の個数: 24

約数和(自身を含む): 162564864

約数和(自身を除く): 81901876

約数列:

[1, 2, 4, 7, 14, 28, 131, 262, 524, 917, 1834, 3668, 21991, 43982, 87964, 153937, 307874, 615748, 2880821, 5761642, 11523284, 20165747, 40331494, 80662988]

約数ペア:

[(1, 80662988), (2, 40331494), (4, 20165747), (7, 11523284), (14, 5761642), (28, 2880821), (131, 615748), (262, 307874), (524, 153937), (917, 87964), (1834, 43982), (3668, 21991)]