56280978

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{240517}}^1$

素因数の和:240538

約数の個数: 24

約数和(自身を含む): 131322828

約数和(自身を除く): 75041850

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 240517, 481034, 721551, 1443102, 2164653, 3126721, 4329306, 6253442, 9380163, 18760326, 28140489, 56280978]

約数ペア:

[(1, 56280978), (2, 28140489), (3, 18760326), (6, 9380163), (9, 6253442), (13, 4329306), (18, 3126721), (26, 2164653), (39, 1443102), (78, 721551), (117, 481034), (234, 240517)]