680220138

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{8720771}}^1$

素因数の和:8720789

約数の個数: 16

約数和(自身を含む): 1465089696

約数和(自身を除く): 784869558

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 8720771, 17441542, 26162313, 52324626, 113370023, 226740046, 340110069, 680220138]

約数ペア:

[(1, 680220138), (2, 340110069), (3, 226740046), (6, 113370023), (13, 52324626), (26, 26162313), (39, 17441542), (78, 8720771)]